**Test standard:** UL 1815

**Standard title:** Nonducted Heat Recovery Ventilators

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1815 | Nonducted Heat Recovery Ventilators |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1815 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1821

**Standard title:** Thermoplastic Sprinkler Pipe and Fittings for Fire Protection

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1821 | Thermoplastic Sprinkler Pipe and Fittings for Fire Protection |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1821 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 183

**Standard title:** Manufactures Wiring Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 183 | Manufactures Wiring Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 183 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1838

**Standard title:** Low Voltage Landscape Lighting Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1838 | Low Voltage Landscape Lighting Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1838 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1863

**Standard title:** Communication Circuit Accessories

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1863 | Communication Circuit Accessories |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1863 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1876

**Standard title:** Isolating Signal and Feedback Transformers for Use in Electronic Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1876 | Isolating Signal and Feedback Transformers for Use in Electronic Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1876 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1887

**Standard title:** Fire Test of Plastic Sprinkler Pipe for Flame and Smoke Characteristics

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1887 | Fire Test of Plastic Sprinkler Pipe for Flame and Smoke Characteristics |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1887 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1889

**Standard title:** Commercial Filters for Cooking Oil

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1889 | Commercial Filters for Cooking Oil |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1889 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1917

**Standard title:** Solid-State Fan Speed Controls

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1917 | Solid-State Fan Speed Controls |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1917 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 193

**Standard title:** Alarm Valves for Fire-Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 193 | Alarm Valves for Fire-Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 193 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 194

**Standard title:** Gasketed Joints for Ductile-Iron Pipe and Fittings for Fire Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 194 | Gasketed Joints for Ductile-Iron Pipe and Fittings for Fire Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 194 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1951

**Standard title:** Electric Plumbing Accessories

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1951 | Electric Plumbing Accessories |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1951 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1963

**Standard title:** Refrigerant Recovery/Recycling Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1963 | Refrigerant Recovery/Recycling Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1963 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 197

**Standard title:** Commercial Electric Cooking Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 197 | Commercial Electric Cooking Appliances |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 197 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1971

**Standard title:** Signaling Devices for the Hearing Impaired

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1971 | Signaling Devices for the Hearing Impaired |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1971 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1973

**Standard title:** Standard for Batteries for Use in Stationary, Vehicle Auxiliary Power and Light Electric Rail (LER) Applications

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1973 | Standard for Batteries for Use in Stationary, Vehicle Auxiliary Power and Light Electric Rail (LER) Applications |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1973 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1977

**Standard title:** Component Connectors for Use in Data, Signal, Control and Power Applications

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1977 | Component Connectors for Use in Data, Signal, Control and Power Applications |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1977 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1981

**Standard title:** Central Station Automation Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1981 | Central Station Automation Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1981 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 198M

**Standard title:** Mine-Duty Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 198M | Mine-Duty Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 198M — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 199

**Standard title:** Automatic Sprinklers for Fire-Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 199 | Automatic Sprinklers for Fire-Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 199 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1990

**Standard title:** Nonmetallic Underground Conduit with Conductors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1990 | Nonmetallic Underground Conduit with Conductors |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1990 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1993

**Standard title:** Self-Ballasted Lamps and Lamp Adapters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1993 | Self-Ballasted Lamps and Lamp Adapters |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1993 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1994

**Standard title:** Low-Level Path Marking and Lighting Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1994 | Low-Level Path Marking and Lighting Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1994 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1995

**Standard title:** Heating and Cooling Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1995 | Heating and Cooling Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1995 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1996

**Standard title:** Duct Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1996 | Duct Heaters |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 1996 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 20

**Standard title:** General-Use Snap Switches

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 20 | General-Use Snap Switches |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 20 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2006

**Standard title:** Halon 1211 Recovery/Recharge Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2006 | Halon 1211 Recovery/Recharge Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2006 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 201

**Standard title:** Standard for Garage Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 201 | Standard for Garage Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 201 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2017

**Standard title:** General Purpose Signaling Devices and Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2017 | General Purpose Signaling Devices and Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2017 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2021

**Standard title:** Fixed and Location-Dedicated Electric Room Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2021 | Fixed and Location-Dedicated Electric Room Heaters |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2021 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2024

**Standard title:** Optical Fiber Cable Raceway

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2024 | Optical Fiber Cable Raceway |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2024 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 203

**Standard title:** Pipe Hanger Equipment for Fire-Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 203 | Pipe Hanger Equipment for Fire-Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 203 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2034

**Standard title:** Single and Multiple Station Carbon Monoxide Detectors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2034 | Single and Multiple Station Carbon Monoxide Detectors |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2034 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2044

**Standard title:** Commercial Closed Circuit Television Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2044 | Commercial Closed Circuit Television Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2044 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2054

**Standard title:** Standard for Household and Commercial Batteries

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2054 | Standard for Household and Commercial Batteries |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2054 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2056

**Standard title:** Power Banks

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2056 | Power Banks |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2056 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2061

**Standard title:** Adapters and Cylinder Connection Devices for Portable LP-Gas Cylinder Assemblies

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2061 | Adapters and Cylinder Connection Devices for Portable LP-Gas Cylinder Assemblies |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2061 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2085

**Standard title:** Insulated Aboveground Tanks for Flammable and Combustible Liquids

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2085 | Insulated Aboveground Tanks for Flammable and Combustible Liquids |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2085 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2089

**Standard title:** Vehicle Battery Adapters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2089 | Vehicle Battery Adapters |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2089 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 209

**Standard title:** Cellular Metal Floor Electrical Raceways and Fittings

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 209 | Cellular Metal Floor Electrical Raceways and Fittings |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 209 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2096

**Standard title:** Commercial/Industrial Gas and/or Gas Fired Heating Assemblies with Emission Reduction Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2096 | Commercial/Industrial Gas and/or Gas Fired Heating Assemblies with Emission Reduction Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2096 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2097

**Standard title:** Reference Standard for Double Insulation Systems for Use in Electronic Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2097 | Reference Standard for Double Insulation Systems for Use in Electronic Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2097 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 21

**Standard title:** LP-Gas Hose

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 21 | LP-Gas Hose |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 21 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2108

**Standard title:** Low Voltage Lighting Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2108 | Low Voltage Lighting Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2108 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2111

**Standard title:** Overheating Protection for Motors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2111 | Overheating Protection for Motors |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2111 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2127

**Standard title:** Inert Gas Clean Agent Extinguishing System Unit

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2127 | Inert Gas Clean Agent Extinguishing System Unit |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2127 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2129

**Standard title:** Standard for Safety for Halocarbon Clean Agent Fire Extinguishers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2129 | Standard for Safety for Halocarbon Clean Agent Fire Extinguishers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2129 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 213

**Standard title:** Rubber Gasketed Fittings for Fire-Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 213 | Rubber Gasketed Fittings for Fire-Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 213 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2157

**Standard title:** Electric Clothes Washing Machines and Extractors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2157 | Electric Clothes Washing Machines and Extractors |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2157 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2158

**Standard title:** Electric Clothes Dryers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2158 | Electric Clothes Dryers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2158 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2161

**Standard title:** Neon Transformers and Power Supplies

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2161 | Neon Transformers and Power Supplies |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2161 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2166

**Standard title:** Halocarbon Clean Agent Extinguishing System Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2166 | Halocarbon Clean Agent Extinguishing System Units |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2166 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 217

**Standard title:** Single and Multiple Station Smoke Detectors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 217 | Single and Multiple Station Smoke Detectors |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 217 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 218

**Standard title:** Fire Pump Controllers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 218 | Fire Pump Controllers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 218 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 22

**Standard title:** Amusement and Gaming Machines

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 22 | Amusement and Gaming Machines |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 22 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2200

**Standard title:** Stationary Engine Generator Assemblies

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2200 | Stationary Engine Generator Assemblies |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2200 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2202

**Standard title:** Electric Vehicle (EV) Charging System Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2202 | Electric Vehicle (EV) Charging System Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2202 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2208

**Standard title:** Solvent Distillation Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2208 | Solvent Distillation Units |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2208 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2225

**Standard title:** Cables and Cable Fittings for Use in Hazardous (Classified) Locations

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2225 | Cables and Cable Fittings for Use in Hazardous (Classified) Locations |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2225 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2227

**Standard title:** Overfilling Prevention Devices

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2227 | Overfilling Prevention Devices |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2227 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2238

**Standard title:** Cable Assemblies and Fittings for Industrial Control and Signal Distribution

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2238 | Cable Assemblies and Fittings for Industrial Control and Signal Distribution |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2238 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2239

**Standard title:** Hardware for the Support of Conduit, Tubing, and Cable

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2239 | Hardware for the Support of Conduit, Tubing, and Cable |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2239 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2250

**Standard title:** Instrumentation Tray Cable

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2250 | Instrumentation Tray Cable |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2250 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2271

**Standard title:** Standard for Batteries for Use in Light Electric Vehicle (LEV) Applications

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2271 | Standard for Batteries for Use in Light Electric Vehicle (LEV) Applications |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2271 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2272

**Standard title:** Standard for Electrical Systems and Personal E-Mobility Devices.

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2272 | Standard for Electrical Systems and Personal E-Mobility Devices. |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2272 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 228

**Standard title:** Door Closers-Holders, and Integral Smoke Detectors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 228 | Door Closers-Holders, and Integral Smoke Detectors |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 228 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2305

**Standard title:** Exhibition Display Units, Fabrication and Installation

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2305 | Exhibition Display Units, Fabrication and Installation |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2305 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 231

**Standard title:** Electrical Power Outlets

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 231 | Electrical Power Outlets |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 231 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 234

**Standard title:** Low Voltage Lighting Fixtures for Use in Recreational Vehicles

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 234 | Low Voltage Lighting Fixtures for Use in Recreational Vehicles |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 234 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2351

**Standard title:** Spray Nozzles for Fire-Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2351 | Spray Nozzles for Fire-Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2351 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2388

**Standard title:** Flexible Lighting Products

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2388 | Flexible Lighting Products |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2388 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2420

**Standard title:** Belowground Reinforced Thermosetting Resin Conduit (RTRC) and Fittings

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2420 | Belowground Reinforced Thermosetting Resin Conduit (RTRC) and Fittings |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2420 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2438

**Standard title:** Outdoor Seasonal-Use Cord-Connected Wiring Devices

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2438 | Outdoor Seasonal-Use Cord-Connected Wiring Devices |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2438 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2443

**Standard title:** Flexible Sprinkler Hose with Fittings for Fire Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2443 | Flexible Sprinkler Hose with Fittings for Fire Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2443 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-1

**Standard title:** Low-Voltage Fuses - Part 1: General Requirements

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-1 | Low-Voltage Fuses - Part 1: General Requirements |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-10

**Standard title:** Low-Voltage Fuses - Part 10: Class L Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-10 | Low-Voltage Fuses - Part 10: Class L Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-10 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-11

**Standard title:** Low-Voltage Fuses - Part 11: Plug Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-11 | Low-Voltage Fuses - Part 11: Plug Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-11 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-12

**Standard title:** Low-Voltage Fuses - Part 12: Class R Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-12 | Low-Voltage Fuses - Part 12: Class R Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-12 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-13

**Standard title:** Low-Voltage Fuses - Part 13: Semiconductor Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-13 | Low-Voltage Fuses - Part 13: Semiconductor Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-13 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-14

**Standard title:** Low-Voltage Fuses - Part 14: Supplemental Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-14 | Low-Voltage Fuses - Part 14: Supplemental Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-14 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-15

**Standard title:** Low-Voltage Fuses - Part 15: Class T Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-15 | Low-Voltage Fuses - Part 15: Class T Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-15 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-16

**Standard title:** Low-Voltage Fuses - Part 16: Test Limiters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-16 | Low-Voltage Fuses - Part 16: Test Limiters |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-16 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-19

**Standard title:** Standard for Low-Voltage Fuses - Part 19: Photovoltaic Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-19 | Standard for Low-Voltage Fuses - Part 19: Photovoltaic Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-19 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-2

**Standard title:** Low-Voltage Fuses - Part 2: Class C Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-2 | Low-Voltage Fuses - Part 2: Class C Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-2 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-3

**Standard title:** Low-Voltage Fuses - Part 3: Class CA and CB Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-3 | Low-Voltage Fuses - Part 3: Class CA and CB Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-3 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-4

**Standard title:** Low-Voltage Fuses - Part 4: Class CC Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-4 | Low-Voltage Fuses - Part 4: Class CC Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-4 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-5

**Standard title:** Low-Voltage Fuses - Part 5: Class G Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-5 | Low-Voltage Fuses - Part 5: Class G Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-5 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-6

**Standard title:** Low-Voltage Fuses - Part 6: Class H Non-Renewable Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-6 | Low-Voltage Fuses - Part 6: Class H Non-Renewable Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-6 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-7

**Standard title:** Low-Voltage Fuses - Part 7: Class H Renewable Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-7 | Low-Voltage Fuses - Part 7: Class H Renewable Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-7 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-8

**Standard title:** Low-Voltage Fuses - Part 8: Class J Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-8 | Low-Voltage Fuses - Part 8: Class J Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-8 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 248-9

**Standard title:** Low-Voltage Fuses - Part 9: Class K Fuses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 248-9 | Low-Voltage Fuses - Part 9: Class K Fuses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 248-9 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 25

**Standard title:** Meters for Flammable and Combustible Liquids and LP-Gas

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 25 | Meters for Flammable and Combustible Liquids and LP-Gas |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 25 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2515

**Standard title:** Aboveground Reinforced Thermosetting Resin Conduit (RTRC) and Fittings

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2515 | Aboveground Reinforced Thermosetting Resin Conduit (RTRC) and Fittings |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2515 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 252

**Standard title:** Compressed Gas Regulators

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 252 | Compressed Gas Regulators |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 252 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2524

**Standard title:** In-Building 2-Way Emergency Radio Communication Enhancement Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2524 | In-Building 2-Way Emergency Radio Communication Enhancement Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2524 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2525

**Standard title:** Standard for Two-Way Emergency Communications Systems for Rescue Assistance

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2525 | Standard for Two-Way Emergency Communications Systems for Rescue Assistance |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2525 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 252A

**Standard title:** Compressed Gas Regulator Accessories

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 252A | Compressed Gas Regulator Accessories |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 252A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2560

**Standard title:** Emergency Call Systems for Assisted Living and Independent Living Facilities

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2560 | Emergency Call Systems for Assisted Living and Independent Living Facilities |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2560 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2572

**Standard title:** Mass Notification Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2572 | Mass Notification Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2572 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2577

**Standard title:** Suspended Ceiling Grid Low Voltage Systems and Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2577 | Suspended Ceiling Grid Low Voltage Systems and Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2577 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2580

**Standard title:** Standard for Safety Batteries for Use in Electric Vehicles

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2580 | Standard for Safety Batteries for Use in Electric Vehicles |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2580 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2586

**Standard title:** Hose Nozzle Valves

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2586 | Hose Nozzle Valves |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2586 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2586A

**Standard title:** Standard for Hose Nozzle Valves for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (E0-E85)

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2586A | Standard for Hose Nozzle Valves for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (E0-E85) |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2586A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2586B

**Standard title:** Standard for Hose Nozzle Valves for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations up to 20 Percent (B20), Kerosene, and Fuel Oil

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2586B | Standard for Hose Nozzle Valves for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations up to 20 Percent (B20), Kerosene, and Fuel Oil |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2586B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2594

**Standard title:** Standard for Electric Vehicle Supply Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2594 | Standard for Electric Vehicle Supply Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2594 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 25A

**Standard title:** Standard for Meters for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (E0-E85)

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 25A | Standard for Meters for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (E0-E85) |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 25A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 25B

**Standard title:** Meters for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations up to 20 Percent (B20), Kerosene, and Fuel Oil

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 25B | Meters for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations up to 20 Percent (B20), Kerosene, and Fuel Oil |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 25B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 260

**Standard title:** Dry Pipe and Deluge Valves for Fire-Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 260 | Dry Pipe and Deluge Valves for Fire-Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 260 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2610

**Standard title:** Commercial Premises Security Alarm Units and Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2610 | Commercial Premises Security Alarm Units and Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2610 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 262

**Standard title:** Gate Valves for Fire-Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 262 | Gate Valves for Fire-Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 262 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 268

**Standard title:** Smoke Detectors for Fire Protective Signalling Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 268 | Smoke Detectors for Fire Protective Signalling Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 268 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 268A

**Standard title:** Smoke Detectors for Duct Application

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 268A | Smoke Detectors for Duct Application |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 268A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2738

**Standard title:** Induction Power Transmitters and Receivers for use with Low Energy Products

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2738 | Induction Power Transmitters and Receivers for use with Low Energy Products |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2738 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2743

**Standard title:** Standard for Portable Power Packs

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2743 | Standard for Portable Power Packs |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2743 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2775

**Standard title:** Standard for Fixed Condensed Aerosol Extinguishing System Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2775 | Standard for Fixed Condensed Aerosol Extinguishing System Units |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2775 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 283

**Standard title:** Air Fresheners and Deodorizers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 283 | Air Fresheners and Deodorizers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 283 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 2849

**Standard title:** Standard for Electrical Systems for eBikes

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 2849 | Standard for Electrical Systems for eBikes |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 2849 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 291

**Standard title:** Automated Teller Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 291 | Automated Teller Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 291 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 294

**Standard title:** Access Control System Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 294 | Access Control System Units |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 294 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 296

**Standard title:** Oil Burners

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 296 | Oil Burners |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 296 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 296A

**Standard title:** Waste Oil-Burning Air-Heating Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 296A | Waste Oil-Burning Air-Heating Appliances |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 296A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 299

**Standard title:** Dry Chemical Fire Extinguishers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 299 | Dry Chemical Fire Extinguishers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 299 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 30

**Standard title:** Metal Safety Cans

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 30 | Metal Safety Cans |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 30 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 300

**Standard title:** Fire Testing of Fire Extinguishing Systems for Protection of Restaurant Cooking Areas

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 300 | Fire Testing of Fire Extinguishing Systems for Protection of Restaurant Cooking Areas |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 300 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 305

**Standard title:** Panic Hardware

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 305 | Panic Hardware |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 305 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 307A

**Standard title:** Liquid Fuel-Burning Heating Appliances for Manufactured Homes and Recreational Vehicles

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 307A | Liquid Fuel-Burning Heating Appliances for Manufactured Homes and Recreational Vehicles |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 307A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 307B

**Standard title:** Gas Burning Heating Appliances for Manufactured Homes and Recreational Vehicles

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 307B | Gas Burning Heating Appliances for Manufactured Homes and Recreational Vehicles |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 307B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 310

**Standard title:** Electrical Quick-Connect Terminals

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 310 | Electrical Quick-Connect Terminals |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 310 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 3100

**Standard title:** ANSI/CAN/UL Automated Mobile Platforms (AMPs)

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 3100 | ANSI/CAN/UL Automated Mobile Platforms (AMPs) |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 3100 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 312

**Standard title:** Check Valves for Fire-Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 312 | Check Valves for Fire-Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 312 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 325

**Standard title:** Door, Drapery, Gate, Louver, and Window Operators and Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 325 | Door, Drapery, Gate, Louver, and Window Operators and Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 325 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 33

**Standard title:** Heat Responsive Links for Fire-Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 33 | Heat Responsive Links for Fire-Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 33 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 330

**Standard title:** Gasoline Hose

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 330 | Gasoline Hose |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 330 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 3300

**Standard title:** Service, Communication, Information, Education and Entertainment Robots - SCIEE Robots

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 3300 | Service, Communication, Information, Education and Entertainment Robots - SCIEE Robots |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 3300 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 331

**Standard title:** Strainers for Flammable Fluids and Anhydrous Ammonia

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 331 | Strainers for Flammable Fluids and Anhydrous Ammonia |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 331 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 346

**Standard title:** Waterflow Indicators for Fire Protective Signaling Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 346 | Waterflow Indicators for Fire Protective Signaling Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 346 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 347

**Standard title:** High-Voltage Industrial Control Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 347 | High-Voltage Industrial Control Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 347 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 353

**Standard title:** Limit Controls

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 353 | Limit Controls |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 353 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 355

**Standard title:** Electric Cord Reels

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 355 | Electric Cord Reels |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 355 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 360

**Standard title:** Liquid Tight Flexible Steel Conduit

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 360 | Liquid Tight Flexible Steel Conduit |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 360 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 363

**Standard title:** Knife Switches

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 363 | Knife Switches |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 363 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 365

**Standard title:** Police Station Connected Burglar Alarm Units and Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 365 | Police Station Connected Burglar Alarm Units and Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 365 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 372

**Standard title:** Primary Safety Controls for Gas - and Oil-Fired Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 372 | Primary Safety Controls for Gas - and Oil-Fired Appliances |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 372 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 3741

**Standard title:** Photovoltaic Hazard Control

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 3741 | Photovoltaic Hazard Control |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 3741 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 378

**Standard title:** Draft Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 378 | Draft Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 378 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 38

**Standard title:** Manually Actuated Signalling Boxes for Use With Fire Protective Signalling Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 38 | Manually Actuated Signalling Boxes for Use With Fire Protective Signalling Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 38 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 385

**Standard title:** Play Pipes for Water Supply Testing in Fire Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 385 | Play Pipes for Water Supply Testing in Fire Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 385 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 391

**Standard title:** Solid-Fuel and Combination-Fuel Control and Supplementary Furnaces

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 391 | Solid-Fuel and Combination-Fuel Control and Supplementary Furnaces |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 391 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 393

**Standard title:** Indicating Pressure Gauges for Fire Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 393 | Indicating Pressure Gauges for Fire Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 393 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 399

**Standard title:** Drinking-Water Coolers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 399 | Drinking-Water Coolers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 399 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4

**Standard title:** Armored Cable

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4 | Armored Cable |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 404

**Standard title:** Gauges, Indicating Pressure, for Compressed Gas Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 404 | Gauges, Indicating Pressure, for Compressed Gas Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 404 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 407

**Standard title:** Manifolds for Compressed Gases

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 407 | Manifolds for Compressed Gases |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 407 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 412

**Standard title:** Refrigeration Unit Coolers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 412 | Refrigeration Unit Coolers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 412 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 414

**Standard title:** Electrical Meter Sockets

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 414 | Electrical Meter Sockets |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 414 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 416

**Standard title:** Refrigerated Medical Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 416 | Refrigerated Medical Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 416 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4248-1

**Standard title:** Fuseholders - Part 1: General Requirements

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4248-1 | Fuseholders - Part 1: General Requirements |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4248-1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4248-11

**Standard title:** Fuseholders - Part 11: Type C (Edison Base) and Type S Plug Fuse

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4248-11 | Fuseholders - Part 11: Type C (Edison Base) and Type S Plug Fuse |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4248-11 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4248-12

**Standard title:** Fuseholders - Part 12: Class R

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4248-12 | Fuseholders - Part 12: Class R |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4248-12 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4248-15

**Standard title:** Fuseholders - Part 15: Class T

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4248-15 | Fuseholders - Part 15: Class T |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4248-15 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4248-19

**Standard title:** Fuseholders - Part 19: Photovoltaic Fuseholders

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4248-19 | Fuseholders - Part 19: Photovoltaic Fuseholders |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4248-19 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4248-4

**Standard title:** Fuseholders - Part 4: Class CC

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4248-4 | Fuseholders - Part 4: Class CC |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4248-4 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4248-5

**Standard title:** Fuseholders - Part 5: Class G

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4248-5 | Fuseholders - Part 5: Class G |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4248-5 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4248-6

**Standard title:** Fuseholders - Part 6: Class 6

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4248-6 | Fuseholders - Part 6: Class 6 |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4248-6 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4248-8

**Standard title:** Fuseholders - Part 8: Class J

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4248-8 | Fuseholders - Part 8: Class J |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4248-8 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4248-9

**Standard title:** Fuseholders - Part 9: Class K

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4248-9 | Fuseholders - Part 9: Class K |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4248-9 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 427

**Standard title:** Refrigerating Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 427 | Refrigerating Units |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 427 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 428A

**Standard title:** Electrically Operated Valves for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations Up to 85 Percent (E0 - E85)

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 428A | Electrically Operated Valves for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations Up to 85 Percent (E0 - E85) |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 428A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 428B

**Standard title:** Electrically Operated Valves for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations Up To 20 Percent (B20), Kerosene, and Fuel Oil

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 428B | Electrically Operated Valves for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations Up To 20 Percent (B20), Kerosene, and Fuel Oil |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 428B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 429

**Standard title:** Electrically Operated Valves

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 429 | Electrically Operated Valves |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 429 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 430

**Standard title:** Electric Waste Disposers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 430 | Electric Waste Disposers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 430 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 44

**Standard title:** Rubber-Insulated Wires and Cables

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 44 | Rubber-Insulated Wires and Cables |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 44 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 441

**Standard title:** Standard for Gas Vents

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 441 | Standard for Gas Vents |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 441 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 443

**Standard title:** Steel Auxiliary Tanks for Oil-Burner Fuel

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 443 | Steel Auxiliary Tanks for Oil-Burner Fuel |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 443 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 444

**Standard title:** Communications Cables

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 444 | Communications Cables |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 444 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 448

**Standard title:** Pumps for Fire Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 448 | Pumps for Fire Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 448 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 448B

**Standard title:** Residential Fire Pumps Intended for One - and Two-Family Dwellings and Manufactured Homes

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 448B | Residential Fire Pumps Intended for One - and Two-Family Dwellings and Manufactured Homes |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 448B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 448C

**Standard title:** Stationary, Rotary-Type, Positive-Displacement Pumps for Fire Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 448C | Stationary, Rotary-Type, Positive-Displacement Pumps for Fire Protection Service |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 448C — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 452

**Standard title:** Antenna Discharge Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 452 | Antenna Discharge Units |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 452 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 458

**Standard title:** Power Converters/Inverters and Power Converter/Inverter Systems for Land Vehicles and Marine Crafts

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 458 | Power Converters/Inverters and Power Converter/Inverter Systems for Land Vehicles and Marine Crafts |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 458 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 464

**Standard title:** Audible Signal Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 464 | Audible Signal Appliances |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 464 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 466

**Standard title:** Electric Scales

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 466 | Electric Scales |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 466 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 467

**Standard title:** Electrical Grounding and Bonding Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 467 | Electrical Grounding and Bonding Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 467 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 469

**Standard title:** Musical Instruments and Accessories

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 469 | Musical Instruments and Accessories |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 469 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 4703

**Standard title:** Standard for Photovoltaic Wire

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 4703 | Standard for Photovoltaic Wire |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 4703 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 471

**Standard title:** Commercial Refrigerators and Freezers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 471 | Commercial Refrigerators and Freezers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 471 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 48

**Standard title:** Electric Signs

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 48 | Electric Signs |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 48 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 482

**Standard title:** Portable Sun/Heat Lamps

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 482 | Portable Sun/Heat Lamps |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 482 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 484

**Standard title:** Room Air Conditioners

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 484 | Room Air Conditioners |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 484 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 486A-486B

**Standard title:** Wire Connectors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 486A-486B | Wire Connectors |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 486A-486B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 486C

**Standard title:** Splicing Wire Connectors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 486C | Splicing Wire Connectors |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 486C — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 486D

**Standard title:** Insulated Wire Connectors for Use With Underground Conductors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 486D | Insulated Wire Connectors for Use With Underground Conductors |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 486D — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 486E

**Standard title:** Equipment Wiring Terminals for Use With Aluminum and/or Copper Conductors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 486E | Equipment Wiring Terminals for Use With Aluminum and/or Copper Conductors |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 486E — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 486F

**Standard title:** Bare and Covered Ferrules

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 486F | Bare and Covered Ferrules |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 486F — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 489

**Standard title:** Molded-Case Circuit Breakers and Circuit-Breaker Enclosures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 489 | Molded-Case Circuit Breakers and Circuit-Breaker Enclosures |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 489 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 489B

**Standard title:** Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures For Use With Photovoltaic (PV) Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 489B | Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures For Use With Photovoltaic (PV) Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 489B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 493

**Standard title:** Thermoplastic-Insulated Underground Feeder and Branch-Circuit Cables

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 493 | Thermoplastic-Insulated Underground Feeder and Branch-Circuit Cables |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 493 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 495

**Standard title:** Power-Operated Dispensing Devices for LP-Gas

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 495 | Power-Operated Dispensing Devices for LP-Gas |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 495 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 496

**Standard title:** Edison-Base Lampholders

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 496 | Edison-Base Lampholders |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 496 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 497

**Standard title:** Protectors for Communication Circuits

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 497 | Protectors for Communication Circuits |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 497 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 497A

**Standard title:** Secondary Protectors for Communication Circuits

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 497A | Secondary Protectors for Communication Circuits |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 497A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 497B

**Standard title:** Protectors for Data Communication and Fire Alarm Circuits

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 497B | Protectors for Data Communication and Fire Alarm Circuits |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 497B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 497C

**Standard title:** Protectors for Coaxial Communications Circuits

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 497C | Protectors for Coaxial Communications Circuits |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 497C — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 498

**Standard title:** Attachment Plugs and Receptacles

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 498 | Attachment Plugs and Receptacles |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 498 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 498A

**Standard title:** Current Taps and Adapters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 498A | Current Taps and Adapters |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 498A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 498C

**Standard title:** Flatiron and Appliance Plugs

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 498C | Flatiron and Appliance Plugs |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 498C — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 499

**Standard title:** Electric Heating Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 499 | Electric Heating Appliances |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 499 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 5

**Standard title:** Surface Metal Raceways and Fittings

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 5 | Surface Metal Raceways and Fittings |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 5 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 50

**Standard title:** Enclosures for Electrical Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 50 | Enclosures for Electrical Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 50 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 506

**Standard title:** Specialty Transformers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 506 | Specialty Transformers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 506 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 507

**Standard title:** Electric Fans

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 507 | Electric Fans |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 507 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 508

**Standard title:** Electric Industrial Control Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 508 | Electric Industrial Control Equipment |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 508 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 5085-1

**Standard title:** Low Voltage Transformers - Part 1: General Requirements

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 5085-1 | Low Voltage Transformers - Part 1: General Requirements |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 5085-1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 5085-2

**Standard title:** Low Voltage Transformers - Part 2: General Purpose Transformers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 5085-2 | Low Voltage Transformers - Part 2: General Purpose Transformers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 5085-2 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 5085-3

**Standard title:** Low Voltage Transformers - Part 3: Class 2 and Class 3 Transformers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 5085-3 | Low Voltage Transformers - Part 3: Class 2 and Class 3 Transformers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 5085-3 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 508A

**Standard title:** Industrial Control Panels

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 508A | Industrial Control Panels |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 508A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 50E

**Standard title:** Enclosures for Electrical Equipment, Environmental Considerations

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 50E | Enclosures for Electrical Equipment, Environmental Considerations |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 50E — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 51

**Standard title:** Power-Operated Pumps for Anhydrous Ammonia and LP-Gas

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 51 | Power-Operated Pumps for Anhydrous Ammonia and LP-Gas |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 51 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 510

**Standard title:** Insulating Tape

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 510 | Insulating Tape |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 510 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 514A

**Standard title:** Metallic Outlet Boxes, Electrical

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 514A | Metallic Outlet Boxes, Electrical |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 514A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 514B

**Standard title:** Fittings for Conduit and Outlet Boxes

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 514B | Fittings for Conduit and Outlet Boxes |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 514B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 514C

**Standard title:** Nonmetallic Outlet Boxes, Flush-Device Boxes and Covers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 514C | Nonmetallic Outlet Boxes, Flush-Device Boxes and Covers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 514C — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 514D

**Standard title:** Cover Plates for Flush-Mounted Wiring Devices

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 514D | Cover Plates for Flush-Mounted Wiring Devices |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 514D — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 515

**Standard title:** Electrical Resistance Heat Tracing for Commercial and Industrial Applications

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 515 | Electrical Resistance Heat Tracing for Commercial and Industrial Applications |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 515 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 521

**Standard title:** Heat Detectors for Fire Protective Signaling Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 521 | Heat Detectors for Fire Protective Signaling Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 521 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 525

**Standard title:** Flame Arresters for Use on Vents of Storage Tanks for Petroleum Oil and Gasoline

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 525 | Flame Arresters for Use on Vents of Storage Tanks for Petroleum Oil and Gasoline |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 525 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 536

**Standard title:** Flexible Metallic Hose

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 536 | Flexible Metallic Hose |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 536 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 539

**Standard title:** Single and Multiple Station Heat Detectors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 539 | Single and Multiple Station Heat Detectors |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 539 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 541

**Standard title:** Refrigerated Vending Machines

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 541 | Refrigerated Vending Machines |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 541 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 542

**Standard title:** Lampholders, Starters, and Starter Holders for Fluorescent Lamps

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 542 | Lampholders, Starters, and Starter Holders for Fluorescent Lamps |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 542 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 551

**Standard title:** Transformer - Type Arc-Welding Machines

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 551 | Transformer - Type Arc-Welding Machines |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 551 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 555

**Standard title:** Fire Dampers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 555 | Fire Dampers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 555 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 555S

**Standard title:** Leakage Rated Dampers for Use in Smoke Control Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 555S | Leakage Rated Dampers for Use in Smoke Control Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 555S — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 558

**Standard title:** Industrial Trucks, Internal Combustion Engine-Powered

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 558 | Industrial Trucks, Internal Combustion Engine-Powered |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 558 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 561

**Standard title:** Floor Finishing Machines

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 561 | Floor Finishing Machines |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 561 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 563

**Standard title:** Ice Makers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 563 | Ice Makers |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 563 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 565

**Standard title:** Liquid Level Gauges and Indicators for Anhydrous Ammonia and LP-Gas

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 565 | Liquid Level Gauges and Indicators for Anhydrous Ammonia and LP-Gas |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 565 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 567

**Standard title:** Pipe Connectors for Flammable and Combustible Liquids and LP-Gas

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 567 | Pipe Connectors for Flammable and Combustible Liquids and LP-Gas |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 567 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 567A

**Standard title:** Standard for Emergency Breakaway Fittings, Swivel Connectors and Pipe-Connection Fittings for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (E0-E85)

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 567A | Standard for Emergency Breakaway Fittings, Swivel Connectors and Pipe-Connection Fittings for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (E0-E85) |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 567A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 567B

**Standard title:** Standard for Emergency Breakaway Fittings, Swivel Connectors and Pipe-Connection Fittings for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations up to 20 Percent (B20), Kerosene, and Fuel Oil

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 567B | Standard for Emergency Breakaway Fittings, Swivel Connectors and Pipe-Connection Fittings for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations up to 20 Percent (B20), Kerosene, and Fuel Oil |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 567B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 568

**Standard title:** Nonmetallic Cable Tray Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 568 | Nonmetallic Cable Tray Systems |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 568 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 569

**Standard title:** Pigtails and Flexible Hoses

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 569 | Pigtails and Flexible Hoses |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 569 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 574

**Standard title:** Electric Oil Heater

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 574 | Electric Oil Heater |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 574 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 58

**Standard title:** Steel Underground Tanks for Flammable and Combustible Liquids

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 58 | Steel Underground Tanks for Flammable and Combustible Liquids |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 58 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 583

**Standard title:** Electric-Battery-Powered Industrial Trucks

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 583 | Electric-Battery-Powered Industrial Trucks |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 583 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 588

**Standard title:** Christmas-Tree and Decorative-Lighting Outfits

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 588 | Christmas-Tree and Decorative-Lighting Outfits |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 588 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 5A

**Standard title:** Nonmetallic Surface Raceways and Fittings

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 5A | Nonmetallic Surface Raceways and Fittings |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 5A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 5B

**Standard title:** Strut-Type Channel Raceways and Fittings

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 5B | Strut-Type Channel Raceways and Fittings |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 5B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 5C

**Standard title:** Surface Raceways and Fittings for Use with Data, Signal, and Control Circuits

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 5C | Surface Raceways and Fittings for Use with Data, Signal, and Control Circuits |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 5C — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 6

**Standard title:** Rigid Metal Conduit

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 6 | Rigid Metal Conduit |

Source: <https://www.osha.gov/nationally-recognized-testing-laboratory-program/ul>

UL 6 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard