**Test standard:** CGA G-2.1 / ANSI K61.1

**Standard title:** Storage and Handling of Anhydrous Ammonia (CGA G-2.1)

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CGA G-2.1 / ANSI K61.1 | Storage and Handling of Anhydrous Ammonia (CGA G-2.1) |

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

CGA G-2.1 / ANSI K61.1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.1

**Standard title:** Household Cooking Gas Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.1 | Household Cooking Gas Appliances |

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

CSA/AM Z21.1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.10.1

**Standard title:** Gas Water Heaters-Automatic Storage Type Water Heaters with Inputs of 70,000 Btu Per Hour or Less

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.10.1 | Gas Water Heaters-Automatic Storage Type Water Heaters with Inputs of 70,000 Btu Per Hour or Less |

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

CSA/AM Z21.10.1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.10.3

**Standard title:** Water Heaters-Circulating Tank, Instantaneous and Large Automatic Storage Type Water Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.10.3 | Water Heaters-Circulating Tank, Instantaneous and Large Automatic Storage Type Water Heaters |

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

CSA/AM Z21.10.3 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.11.2

**Standard title:** Gas-Fired Room Heaters-Unvented Room Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.11.2 | Gas-Fired Room Heaters-Unvented Room Heaters |

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

CSA/AM Z21.11.2 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.13

**Standard title:** Gas-Fired Low-Pressure Steam and Hot Water Heating Boilers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.13 | Gas-Fired Low-Pressure Steam and Hot Water Heating Boilers |

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

CSA/AM Z21.13 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.15

**Standard title:** Manually Operated Gas Valves

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.15 | Manually Operated Gas Valves |

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

CSA/AM Z21.15 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.17

**Standard title:** Domestic Gas Conversion Burners

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.17 | Domestic Gas Conversion Burners |

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

CSA/AM Z21.17 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.18

**Standard title:** Gas Appliance Pressure Regulators

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.18 | Gas Appliance Pressure Regulators |

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

CSA/AM Z21.18 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.19

**Standard title:** Refrigerators Using Gas Fuel

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.19 | Refrigerators Using Gas Fuel |

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

CSA/AM Z21.19 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.20

**Standard title:** Automatic Gas Ignition Systems and Components

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.20 | Automatic Gas Ignition Systems and Components |

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

CSA/AM Z21.20 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.21

**Standard title:** Automatic Valves for Gas Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.21 | Automatic Valves for Gas Appliances |

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

CSA/AM Z21.21 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.22

**Standard title:** Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply System

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.22 | Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply System |

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

CSA/AM Z21.22 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.23

**Standard title:** Gas Appliance Thermostats

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.23 | Gas Appliance Thermostats |

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

CSA/AM Z21.23 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.24

**Standard title:** Metal Connectors for Gas Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.24 | Metal Connectors for Gas Appliances |

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

CSA/AM Z21.24 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.35

**Standard title:** Gas Filters on Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.35 | Gas Filters on Appliances |

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

CSA/AM Z21.35 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.40.1

**Standard title:** Gas-Fired Absorption Summer Air Conditioning Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.40.1 | Gas-Fired Absorption Summer Air Conditioning Appliances |

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

CSA/AM Z21.40.1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.41

**Standard title:** Quick-Disconnect Devices for Use with Gas Fuel

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.41 | Quick-Disconnect Devices for Use with Gas Fuel |

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

CSA/AM Z21.41 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.42

**Standard title:** Gas-Fired Illuminating Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.42 | Gas-Fired Illuminating Appliances |

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

CSA/AM Z21.42 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.47

**Standard title:** Gas-Fired Gravity and Forced Air Central Furnaces

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.47 | Gas-Fired Gravity and Forced Air Central Furnaces |

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

CSA/AM Z21.47 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.5.1

**Standard title:** Gas Clothes Dryers - Type 1

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.5.1 | Gas Clothes Dryers - Type 1 |

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

CSA/AM Z21.5.1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.5.2

**Standard title:** Gas Clothes Dryers - Type 2

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.5.2 | Gas Clothes Dryers - Type 2 |

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

CSA/AM Z21.5.2 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.50

**Standard title:** Vented Decorative Gas Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.50 | Vented Decorative Gas Appliances |

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

CSA/AM Z21.50 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.54

**Standard title:** Gas Hose Connectors for Portable Outdoor Gas-Fired Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.54 | Gas Hose Connectors for Portable Outdoor Gas-Fired Appliances |

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

CSA/AM Z21.54 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.56

**Standard title:** Gas-Fired Pool Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.56 | Gas-Fired Pool Heaters |

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

CSA/AM Z21.56 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.57

**Standard title:** Recreational Vehicle Cooking Gas Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.57 | Recreational Vehicle Cooking Gas Appliances |

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

CSA/AM Z21.57 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.58

**Standard title:** Outdoor Cooking Gas Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.58 | Outdoor Cooking Gas Appliances |

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

CSA/AM Z21.58 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.60

**Standard title:** Decorative Gas Appliances for Installation in Vented Fireplaces

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.60 | Decorative Gas Appliances for Installation in Vented Fireplaces |

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

CSA/AM Z21.60 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.66

**Standard title:** Automatic Vent Damper Devices for Use With Gas-Fired Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.66 | Automatic Vent Damper Devices for Use With Gas-Fired Appliances |

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

CSA/AM Z21.66 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.69

**Standard title:** Connectors for Movable Gas Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.69 | Connectors for Movable Gas Appliances |

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

CSA/AM Z21.69 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.74

**Standard title:** Portable Refrigerators for Use With HD-5 Propane Gas

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.74 | Portable Refrigerators for Use With HD-5 Propane Gas |

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

CSA/AM Z21.74 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z21.76

**Standard title:** Gas-Fired Unvented Catalytic Room Heaters for Use With Liquefied Petroleum (LP) Gases

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z21.76 | Gas-Fired Unvented Catalytic Room Heaters for Use With Liquefied Petroleum (LP) Gases |

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

CSA/AM Z21.76 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z83.11

**Standard title:** Gas Food Service Equipment-Ranges and Unit Broilers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z83.11 | Gas Food Service Equipment-Ranges and Unit Broilers |

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

CSA/AM Z83.11 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z83.18

**Standard title:** Direct Gas Fired Industrial Air Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z83.18 | Direct Gas Fired Industrial Air Heaters |

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

CSA/AM Z83.18 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z83.4

**Standard title:** Direct Gas-Fired Make-Up Air Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z83.4 | Direct Gas-Fired Make-Up Air Heaters |

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

CSA/AM Z83.4 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z83.7

**Standard title:** Gas-Fired Construction Heater

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z83.7 | Gas-Fired Construction Heater |

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

CSA/AM Z83.7 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** CSA/AM Z83.8

**Standard title:** Gas Unit Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> CSA/AM Z83.8 | Gas Unit Heaters |

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

CSA/AM Z83.8 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.121

**Standard title:** Unit Substations-Requirements

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.121 | Unit Substations-Requirements |

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

IEEE C37.121 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.122

**Standard title:** Gas-Insulated Substations

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.122 | Gas-Insulated Substations |

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

IEEE C37.122 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.13

**Standard title:** Low Voltage AC Power Circuit Breakers Used in Enclosures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.13 | Low Voltage AC Power Circuit Breakers Used in Enclosures |

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

IEEE C37.13 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.14

**Standard title:** Low Voltage DC Power Circuit Breakers Used in Enclosures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.14 | Low Voltage DC Power Circuit Breakers Used in Enclosures |

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

IEEE C37.14 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.17

**Standard title:** Trip Devices for AC and General Purpose DC Low-Voltage Power Circuit Breakers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.17 | Trip Devices for AC and General Purpose DC Low-Voltage Power Circuit Breakers |

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

IEEE C37.17 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.18

**Standard title:** Enclosed Field Discharge Circuit Breakers for Rotating Electric Machinery

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.18 | Enclosed Field Discharge Circuit Breakers for Rotating Electric Machinery |

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

IEEE C37.18 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.20.1

**Standard title:** Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.20.1 | Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear |

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

IEEE C37.20.1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.20.2

**Standard title:** Metal-Clad and Station - Type Cubicle Switchgear

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.20.2 | Metal-Clad and Station - Type Cubicle Switchgear |

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

IEEE C37.20.2 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.20.3

**Standard title:** Metal-Enclosed Interrupter Switchgear

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.20.3 | Metal-Enclosed Interrupter Switchgear |

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

IEEE C37.20.3 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.20.4

**Standard title:** Indoor AC Switches (1 kV-38 kV) for Use in Metal-Enclosed Switchgear

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.20.4 | Indoor AC Switches (1 kV-38 kV) for Use in Metal-Enclosed Switchgear |

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

IEEE C37.20.4 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.20.6

**Standard title:** 4.76 kV to 38 kV Rated Grounding and Testing Devices Used in Enclosures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.20.6 | 4.76 kV to 38 kV Rated Grounding and Testing Devices Used in Enclosures |

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

IEEE C37.20.6 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.20.7

**Standard title:** IEEE Guide for Testing Metal-Enclosed Switchgear Rated Up to 38 kV for Internal Arcing Faults

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.20.7 | IEEE Guide for Testing Metal-Enclosed Switchgear Rated Up to 38 kV for Internal Arcing Faults |

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

IEEE C37.20.7 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.21

**Standard title:** Control Switchboards

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.21 | Control Switchboards |

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

IEEE C37.21 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.23

**Standard title:** Metal-Enclosed Bus

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.23 | Metal-Enclosed Bus |

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

IEEE C37.23 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.41

**Standard title:** High-Voltage Fuses, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Accessories

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.41 | High-Voltage Fuses, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Accessories |

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

IEEE C37.41 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.42

**Standard title:** Distribution Cutouts and Fuse Links

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.42 | Distribution Cutouts and Fuse Links |

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

IEEE C37.42 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.66

**Standard title:** Oil-Filled Capacitor Switches for Alternating-Current Systems-Requirements

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.66 | Oil-Filled Capacitor Switches for Alternating-Current Systems-Requirements |

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

IEEE C37.66 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.74

**Standard title:** Subsurface, Vault, and Pad-Mounted Load-Interrupter Switchgear and Fused Load-Interrupter Switchgear for Alternating Current Systems Up to 38 kV Switchgear

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.74 | Subsurface, Vault, and Pad-Mounted Load-Interrupter Switchgear and Fused Load-Interrupter Switchgear for Alternating Current Systems Up to 38 kV Switchgear |

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

IEEE C37.74 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C37.90

**Standard title:** Relays and Relay Systems Associated with Electric Power Apparatus

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C37.90 | Relays and Relay Systems Associated with Electric Power Apparatus |

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

IEEE C37.90 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.12.00

**Standard title:** Distribution, Power and Regulating Transformers-General Requirements

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.12.00 | Distribution, Power and Regulating Transformers-General Requirements |

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

IEEE C57.12.00 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.12.20

**Standard title:** Overhead-Type Distribution Transformers, 500 kVA and Smaller

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.12.20 | Overhead-Type Distribution Transformers, 500 kVA and Smaller |

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

IEEE C57.12.20 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.12.23

**Standard title:** Underground-Type Self-Cooled, Single-Phase Distribution Transformers with Separable Insulated High-Voltage Connectors; 167 kVA and Smaller

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.12.23 | Underground-Type Self-Cooled, Single-Phase Distribution Transformers with Separable Insulated High-Voltage Connectors; 167 kVA and Smaller |

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

IEEE C57.12.23 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.12.24

**Standard title:** Underground-Type Three-Phase Distribution Transformers, 2500 kVA and Smaller

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.12.24 | Underground-Type Three-Phase Distribution Transformers, 2500 kVA and Smaller |

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

IEEE C57.12.24 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.12.25

**Standard title:** Pad-Mounted Compartmental-Type Self-Cooled Single-Phase Distribution Transformers with Separable Insulated High-Voltage Connectors; 167 kVA and Smaller

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.12.25 | Pad-Mounted Compartmental-Type Self-Cooled Single-Phase Distribution Transformers with Separable Insulated High-Voltage Connectors; 167 kVA and Smaller |

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

IEEE C57.12.25 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.12.40

**Standard title:** Three Phase Secondary Network Transformers, Subway and Vault Types (Liquid Immersed); 2500 kVA and Smaller

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.12.40 | Three Phase Secondary Network Transformers, Subway and Vault Types (Liquid Immersed); 2500 kVA and Smaller |

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

IEEE C57.12.40 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.12.44

**Standard title:** Secondary Network Protectors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.12.44 | Secondary Network Protectors |

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

IEEE C57.12.44 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.12.50

**Standard title:** Ventilated Dry - Type Distribution Transformers, 1 to 500 kVA, Single-Phase; and 15 to 500 kVA, Three Phase

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.12.50 | Ventilated Dry - Type Distribution Transformers, 1 to 500 kVA, Single-Phase; and 15 to 500 kVA, Three Phase |

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

IEEE C57.12.50 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.12.51

**Standard title:** Ventilated Dry - Type Power Transformers 501 kVA and Larger, Three-Phase

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.12.51 | Ventilated Dry - Type Power Transformers 501 kVA and Larger, Three-Phase |

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

IEEE C57.12.51 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.12.52

**Standard title:** Sealed Dry - Type Power Transformers, 501 kVA and Larger, Three-Phase

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.12.52 | Sealed Dry - Type Power Transformers, 501 kVA and Larger, Three-Phase |

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

IEEE C57.12.52 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.12.55

**Standard title:** Dry - Type Transformers in Unit Installations, Including Unit Substations-Conformance Requirements

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.12.55 | Dry - Type Transformers in Unit Installations, Including Unit Substations-Conformance Requirements |

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

IEEE C57.12.55 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.13

**Standard title:** Instrument Transformers-Requirements

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.13 | Instrument Transformers-Requirements |

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

IEEE C57.13 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.15

**Standard title:** Step-Voltage and Induction-Voltage Regulators

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.15 | Step-Voltage and Induction-Voltage Regulators |

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

IEEE C57.15 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C57.21

**Standard title:** Shunt Reactors Over 500 kVA

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C57.21 | Shunt Reactors Over 500 kVA |

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

IEEE C57.21 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** IEEE C62.11

**Standard title:** Metal Oxide Surge Arresters for AC Power Circuits

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> IEEE C62.11 | Metal Oxide Surge Arresters for AC Power Circuits |

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

IEEE C62.11 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** ISA 60079-26

**Standard title:** Explosive Atmospheres - Part 26: Equipment for Use in Class I, Zone 0 Hazardous (Classified) Locations

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> ISA 60079-26 | Explosive Atmospheres - Part 26: Equipment for Use in Class I, Zone 0 Hazardous (Classified) Locations |

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

ISA 60079-26 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** NEMA C12.1

**Standard title:** Code for Electricity Meters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> NEMA C12.1 | Code for Electricity Meters |

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

NEMA C12.1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** NEMA C37.50

**Standard title:** Low-Voltage AC Power Circuit Breakers Used in Enclosures-Test Procedures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> NEMA C37.50 | Low-Voltage AC Power Circuit Breakers Used in Enclosures-Test Procedures |

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

NEMA C37.50 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** NEMA C37.51

**Standard title:** Metal-Enclosed Low-Voltage AC Power Circuit-Breaker Switchgear Assemblies-Conformance Test Procedures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> NEMA C37.51 | Metal-Enclosed Low-Voltage AC Power Circuit-Breaker Switchgear Assemblies-Conformance Test Procedures |

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

NEMA C37.51 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** NEMA C37.52

**Standard title:** Low-Voltage AC Power Circuit Protectors Used in Enclosures-Test Procedures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> NEMA C37.52 | Low-Voltage AC Power Circuit Protectors Used in Enclosures-Test Procedures |

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

NEMA C37.52 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** NEMA C37.53.1

**Standard title:** High-Voltage Current Motor-Starter Fuses-Conformance Test Procedures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> NEMA C37.53.1 | High-Voltage Current Motor-Starter Fuses-Conformance Test Procedures |

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

NEMA C37.53.1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** NEMA C37.54

**Standard title:** Indoor Alternating-Current High Voltage Circuit Breakers Applied as Removable Elements in Metal-Enclosed Switchgear Assemblies-Conformance Test Procedures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> NEMA C37.54 | Indoor Alternating-Current High Voltage Circuit Breakers Applied as Removable Elements in Metal-Enclosed Switchgear Assemblies-Conformance Test Procedures |

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

NEMA C37.54 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** NEMA C37.55

**Standard title:** Metal-Clad Switchgear Assemblies-Conformance Test Procedures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> NEMA C37.55 | Metal-Clad Switchgear Assemblies-Conformance Test Procedures |

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

NEMA C37.55 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** NEMA C37.57

**Standard title:** Metal-Enclosed Interrupter Switchgear Assemblies-Conformance Testing

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> NEMA C37.57 | Metal-Enclosed Interrupter Switchgear Assemblies-Conformance Testing |

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

NEMA C37.57 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** NEMA C37.58

**Standard title:** Indoor AC Medium-Voltage Switches for Use in Metal-Enclosed Switchgear-Conformance Test Procedures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> NEMA C37.58 | Indoor AC Medium-Voltage Switches for Use in Metal-Enclosed Switchgear-Conformance Test Procedures |

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

NEMA C37.58 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** NFPA 13

**Standard title:** Installation of Sprinkler Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> NFPA 13 | Installation of Sprinkler Systems |

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

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


**Test standard:** NFPA 496

**Standard title:** Purged and Pressurized Enclosures for Electrical Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> NFPA 496 | Purged and Pressurized Enclosures for Electrical Equipment |

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

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


**Test standard:** TIA 4950

**Standard title:** Requirements for Battery-Powered, Portable Land Mobile Radio Applications in Class I, II, and III, Division 1, Hazardous (Classified) Locations

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> TIA 4950 | Requirements for Battery-Powered, Portable Land Mobile Radio Applications in Class I, II, and III, Division 1, Hazardous (Classified) Locations |

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

TIA 4950 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1

**Standard title:** Flexible Metal Conduit

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1 | Flexible Metal Conduit |

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

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


**Test standard:** UL 1004-1

**Standard title:** Rotating Electrical Machines

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1004-1 | Rotating Electrical Machines |

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

UL 1004-1 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1004-5

**Standard title:** Fire Pump Motors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1004-5 | Fire Pump Motors |

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

UL 1004-5 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1008

**Standard title:** Automatic Transfer Switches

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1008 | Automatic Transfer Switches |

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

UL 1008 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1008A

**Standard title:** Medium-Voltage Transfer Switches

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1008A | Medium-Voltage Transfer Switches |

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

UL 1008A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1012

**Standard title:** Power Supplies

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1012 | Power Supplies |

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

UL 1012 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1017

**Standard title:** Electric Vacuum Cleaning Machines and Blower Cleaners

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1017 | Electric Vacuum Cleaning Machines and Blower Cleaners |

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

UL 1017 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1018

**Standard title:** Electric Aquarium Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1018 | Electric Aquarium Equipment |

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

UL 1018 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1022

**Standard title:** Line Isolated Monitors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1022 | Line Isolated Monitors |

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

UL 1022 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1023

**Standard title:** Household Burglar-Alarm System Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1023 | Household Burglar-Alarm System Units |

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

UL 1023 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1026

**Standard title:** Electric Household Cooking and Food-Serving Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1026 | Electric Household Cooking and Food-Serving Appliances |

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

UL 1026 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1029

**Standard title:** High-Intensity Discharge Lamp Ballasts

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1029 | High-Intensity Discharge Lamp Ballasts |

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

UL 1029 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1030

**Standard title:** Sheathed Heater Elements

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1030 | Sheathed Heater Elements |

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

UL 1030 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1034

**Standard title:** Burglary Resistant Electric Locking Mechanisms

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1034 | Burglary Resistant Electric Locking Mechanisms |

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

UL 1034 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1037

**Standard title:** Antitheft Alarms and Devices

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1037 | Antitheft Alarms and Devices |

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

UL 1037 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 104

**Standard title:** Elevator Door Locking Devices and Contacts

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 104 | Elevator Door Locking Devices and Contacts |

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

UL 104 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1042

**Standard title:** Electric Baseboard Heating Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1042 | Electric Baseboard Heating Equipment |

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

UL 1042 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1047

**Standard title:** Isolated Power Systems Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1047 | Isolated Power Systems Equipment |

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

UL 1047 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1053

**Standard title:** Ground-Fault Sensing and Relaying Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1053 | Ground-Fault Sensing and Relaying Equipment |

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

UL 1053 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1058

**Standard title:** Halogenated Agent Extinguishing System Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1058 | Halogenated Agent Extinguishing System Units |

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

UL 1058 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1059

**Standard title:** Terminal Blocks

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1059 | Terminal Blocks |

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

UL 1059 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1062

**Standard title:** Unit Substations

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1062 | Unit Substations |

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

UL 1062 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1063

**Standard title:** Machine-Tool Wires and Cables

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1063 | Machine-Tool Wires and Cables |

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

UL 1063 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1066

**Standard title:** Low-Voltage AC and DC power Circuit Breakers Used in Enclosures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1066 | Low-Voltage AC and DC power Circuit Breakers Used in Enclosures |

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

UL 1066 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1069

**Standard title:** Hospital Signaling and Nurse Call Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1069 | Hospital Signaling and Nurse Call Equipment |

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

UL 1069 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1072

**Standard title:** Medium Voltage Power Cables

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1072 | Medium Voltage Power Cables |

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

UL 1072 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1076

**Standard title:** Proprietary Burglar-Alarm Units and Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1076 | Proprietary Burglar-Alarm Units and Systems |

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

UL 1076 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1077

**Standard title:** Supplementary Protectors for Use in Electrical Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1077 | Supplementary Protectors for Use in Electrical Equipment |

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

UL 1077 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1081

**Standard title:** Electric Swimming Pool Pumps, Filters and Chlorinators

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1081 | Electric Swimming Pool Pumps, Filters and Chlorinators |

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

UL 1081 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1082

**Standard title:** Household Electric Coffee Makers and Brewing - Type Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1082 | Household Electric Coffee Makers and Brewing - Type Appliances |

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

UL 1082 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1083

**Standard title:** Household Electric Skillets and Frying - Type Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1083 | Household Electric Skillets and Frying - Type Appliances |

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

UL 1083 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1086

**Standard title:** Household Trash Compactors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1086 | Household Trash Compactors |

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

UL 1086 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1088

**Standard title:** Temporary Lighting Strings

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1088 | Temporary Lighting Strings |

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

UL 1088 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 109

**Standard title:** Tube Fittings for Flammable and Combustible Fluids, Refrigeration Service, and Marine Use

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 109 | Tube Fittings for Flammable and Combustible Fluids, Refrigeration Service, and Marine Use |

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

UL 109 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1090

**Standard title:** Electric Snow Movers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1090 | Electric Snow Movers |

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

UL 1090 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1091

**Standard title:** Butterfly Valves for Fire Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1091 | Butterfly Valves for Fire Protection Service |

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

UL 1091 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 10A

**Standard title:** Tin-Clad Fire Doors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 10A | Tin-Clad Fire Doors |

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

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


**Test standard:** UL 10B

**Standard title:** Fire Tests of Door Assemblies

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 10B | Fire Tests of Door Assemblies |

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

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


**Test standard:** UL 10C

**Standard title:** Positive Pressure Fire Tests of Door Assemblies

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 10C | Positive Pressure Fire Tests of Door Assemblies |

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

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


**Test standard:** UL 1203

**Standard title:** Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1203 | Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations |

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

UL 1203 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1206

**Standard title:** Electric Commercial Clothes-Washing Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1206 | Electric Commercial Clothes-Washing Equipment |

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

UL 1206 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 121201

**Standard title:** Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 121201 | Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations |

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

UL 121201 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 122

**Standard title:** Photographic Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 122 | Photographic Equipment |

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

UL 122 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 122701

**Standard title:** Requirements for Process Sealing Between Electrical Systems and Flammable or Combustible Process Fluids

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 122701 | Requirements for Process Sealing Between Electrical Systems and Flammable or Combustible Process Fluids |

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

UL 122701 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 123

**Standard title:** Oxy-Fuel Gas Torches

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 123 | Oxy-Fuel Gas Torches |

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

UL 123 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1230

**Standard title:** Amateur Movie Lights

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1230 | Amateur Movie Lights |

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

UL 1230 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1236

**Standard title:** Electric Battery Chargers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1236 | Electric Battery Chargers |

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

UL 1236 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1238

**Standard title:** Control Equipment for Use With Flammable Liquid Dispensing Devices

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1238 | Control Equipment for Use With Flammable Liquid Dispensing Devices |

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

UL 1238 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1240

**Standard title:** Electric Commercial Clothes-Drying Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1240 | Electric Commercial Clothes-Drying Equipment |

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

UL 1240 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1241

**Standard title:** Junction Boxes for Swimming Pool Lighting Fixtures

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1241 | Junction Boxes for Swimming Pool Lighting Fixtures |

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

UL 1241 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1242

**Standard title:** Intermediate Metal Conduit

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1242 | Intermediate Metal Conduit |

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

UL 1242 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1247

**Standard title:** Diesel Engines for Driving Centrifugal Fire Pumps

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1247 | Diesel Engines for Driving Centrifugal Fire Pumps |

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

UL 1247 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1248

**Standard title:** Engine-Generator Assemblies for Use in Recreational Vehicles

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1248 | Engine-Generator Assemblies for Use in Recreational Vehicles |

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

UL 1248 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 125

**Standard title:** Valves for Anhydrous Ammonia and LP-Gas (Other Than Safety Relief)

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 125 | Valves for Anhydrous Ammonia and LP-Gas (Other Than Safety Relief) |

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

UL 125 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1254

**Standard title:** Pre-Engineered Dry Chemical Extinguishing System Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1254 | Pre-Engineered Dry Chemical Extinguishing System Units |

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

UL 1254 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1261

**Standard title:** Electric Water Heaters for Pools and Tubs

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1261 | Electric Water Heaters for Pools and Tubs |

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

UL 1261 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1277

**Standard title:** Electrical Power and Control Tray Cables With Optional Optical-Fiber Members

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1277 | Electrical Power and Control Tray Cables With Optional Optical-Fiber Members |

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

UL 1277 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1278

**Standard title:** Movable and Wall - or Ceiling-Hung Electric Room Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1278 | Movable and Wall - or Ceiling-Hung Electric Room Heaters |

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

UL 1278 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1283

**Standard title:** Electromagnetic-Interference Filter

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1283 | Electromagnetic-Interference Filter |

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

UL 1283 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1285

**Standard title:** Pipe and Couplings, Polyvinyl Chloride (PVC) for Underground Fire Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1285 | Pipe and Couplings, Polyvinyl Chloride (PVC) for Underground Fire Service |

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

UL 1285 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1286

**Standard title:** Office Furnishings

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1286 | Office Furnishings |

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

UL 1286 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 13

**Standard title:** Power-Limited Circuit Cables

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 13 | Power-Limited Circuit Cables |

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

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


**Test standard:** UL 130

**Standard title:** Electric Heating Pads

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 130 | Electric Heating Pads |

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

UL 130 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1310

**Standard title:** Direct Plug-In Transformer Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1310 | Direct Plug-In Transformer Units |

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

UL 1310 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1313

**Standard title:** Nonmetallic Safety Cans for Petroleum Products

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1313 | Nonmetallic Safety Cans for Petroleum Products |

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

UL 1313 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1314

**Standard title:** Special-Purpose Containers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1314 | Special-Purpose Containers |

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

UL 1314 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1316

**Standard title:** Glass-Fiber-Reinforced Plastic Underground Storage Tanks for Petroleum Products

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1316 | Glass-Fiber-Reinforced Plastic Underground Storage Tanks for Petroleum Products |

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

UL 1316 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 132

**Standard title:** Safety Relief Valves for Anhydrous Ammonia and LP-Gas

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 132 | Safety Relief Valves for Anhydrous Ammonia and LP-Gas |

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

UL 132 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1322

**Standard title:** Fabricated Scaffold Planks and Stages

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1322 | Fabricated Scaffold Planks and Stages |

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

UL 1322 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1323

**Standard title:** Scaffold Hoists

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1323 | Scaffold Hoists |

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

UL 1323 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1340

**Standard title:** Hoists

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1340 | Hoists |

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

UL 1340 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1363

**Standard title:** Temporary Power Taps

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1363 | Temporary Power Taps |

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

UL 1363 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 141

**Standard title:** Garment Finishing Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 141 | Garment Finishing Appliances |

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

UL 141 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1419

**Standard title:** Professional Video and Audio Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1419 | Professional Video and Audio Equipment |

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

UL 1419 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 142

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

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 142 | Steel Aboveground Tanks for Flammable and Combustible Liquids |

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

UL 142 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1424

**Standard title:** Cables for Power-Limited Fire-Protective-Signaling Circuits

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1424 | Cables for Power-Limited Fire-Protective-Signaling Circuits |

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

UL 1424 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1425

**Standard title:** Cables for Non-Power Limited Fire-Alarm Circuits

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1425 | Cables for Non-Power Limited Fire-Alarm Circuits |

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

UL 1425 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1429

**Standard title:** Pullout Switches

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1429 | Pullout Switches |

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

UL 1429 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1431

**Standard title:** Personal Hygiene and Health Care Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1431 | Personal Hygiene and Health Care Appliances |

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

UL 1431 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1434

**Standard title:** Thermistor-Type Devices

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1434 | Thermistor-Type Devices |

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

UL 1434 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1436

**Standard title:** Outlet Circuit Testers and Similar Indicating Devices

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1436 | Outlet Circuit Testers and Similar Indicating Devices |

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

UL 1436 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1437

**Standard title:** Electrical Analog Instruments, Panelboard Types

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1437 | Electrical Analog Instruments, Panelboard Types |

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

UL 1437 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 144

**Standard title:** Pressure Regulating Valves for LP-Gas

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 144 | Pressure Regulating Valves for LP-Gas |

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

UL 144 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1447

**Standard title:** Electric Lawn Mowers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1447 | Electric Lawn Mowers |

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

UL 1447 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1449

**Standard title:** Transient Voltage Surge Suppressors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1449 | Transient Voltage Surge Suppressors |

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

UL 1449 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1450

**Standard title:** Motor-Operated Air Compressors, Vacuum Pumps and Painting Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1450 | Motor-Operated Air Compressors, Vacuum Pumps and Painting Equipment |

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

UL 1450 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1453

**Standard title:** Electric Booster and Commercial Storage Tank Water Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1453 | Electric Booster and Commercial Storage Tank Water Heaters |

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

UL 1453 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1468

**Standard title:** Direct-Acting Pressure-Reducing and Pressure-Control Valves for Fire Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1468 | Direct-Acting Pressure-Reducing and Pressure-Control Valves for Fire Protection Service |

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

UL 1468 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 147

**Standard title:** LP- and MPS-Gas Torches

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 147 | LP- and MPS-Gas Torches |

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

UL 147 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1472

**Standard title:** Solid-State Dimming Controls

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1472 | Solid-State Dimming Controls |

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

UL 1472 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1474

**Standard title:** Adjustable Drop Nipples for Sprinkler Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1474 | Adjustable Drop Nipples for Sprinkler Systems |

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

UL 1474 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1478

**Standard title:** Fire Pump Relief Valves

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1478 | Fire Pump Relief Valves |

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

UL 1478 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 147A

**Standard title:** Nonrefillable (Disposable) Type Fuel Gas Cylinder Assemblies

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 147A | Nonrefillable (Disposable) Type Fuel Gas Cylinder Assemblies |

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

UL 147A — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 147B

**Standard title:** Nonrefillable (Disposable) Type Metal Container Assemblies for Butane

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 147B | Nonrefillable (Disposable) Type Metal Container Assemblies for Butane |

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

UL 147B — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1480

**Standard title:** Speakers for Fire Protective Signaling Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1480 | Speakers for Fire Protective Signaling Systems |

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

UL 1480 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1481

**Standard title:** Power Supplies for Fire Protective Signaling Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1481 | Power Supplies for Fire Protective Signaling Systems |

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

UL 1481 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1482

**Standard title:** Solid-Fuel Type Room Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1482 | Solid-Fuel Type Room Heaters |

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

UL 1482 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1484

**Standard title:** Residential Gas Detectors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1484 | Residential Gas Detectors |

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

UL 1484 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1486

**Standard title:** Quick Opening Devices for Dry Pipe Valves for Fire-Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1486 | Quick Opening Devices for Dry Pipe Valves for Fire-Protection Service |

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

UL 1486 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1492

**Standard title:** Audio and Video Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1492 | Audio and Video Equipment |

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

UL 1492 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 14B

**Standard title:** Sliding Hardware for Standard, Horizontally Mounted Tin-Clad Fire Doors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 14B | Sliding Hardware for Standard, Horizontally Mounted Tin-Clad Fire Doors |

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

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


**Test standard:** UL 14C

**Standard title:** Swinging Hardware for Standard Tin-Clad Fire Doors Mounted Singly or In Pairs

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 14C | Swinging Hardware for Standard Tin-Clad Fire Doors Mounted Singly or In Pairs |

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

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


**Test standard:** UL 150

**Standard title:** Antenna Rotators

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 150 | Antenna Rotators |

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

UL 150 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 153

**Standard title:** Portable Electric Lamps

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 153 | Portable Electric Lamps |

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

UL 153 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 154

**Standard title:** Carbon Dioxide Fire Extinguishers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 154 | Carbon Dioxide Fire Extinguishers |

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

UL 154 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 155

**Standard title:** Tests for Fire Resistance of Vault and File Room Doors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 155 | Tests for Fire Resistance of Vault and File Room Doors |

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

UL 155 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1557

**Standard title:** Electrically Isolated Semiconductor Devices

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1557 | Electrically Isolated Semiconductor Devices |

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

UL 1557 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1558

**Standard title:** Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1558 | Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear |

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

UL 1558 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1559

**Standard title:** Insect-Control Equipment, Electrocution Type

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1559 | Insect-Control Equipment, Electrocution Type |

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

UL 1559 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1561

**Standard title:** Large General Purpose Transformers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1561 | Large General Purpose Transformers |

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

UL 1561 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1562

**Standard title:** Transformers, Distribution, Dry Type-Over 600 Volts

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1562 | Transformers, Distribution, Dry Type-Over 600 Volts |

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

UL 1562 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1563

**Standard title:** Electric Hot Tubs, Spas, and Associated Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1563 | Electric Hot Tubs, Spas, and Associated Equipment |

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

UL 1563 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1564

**Standard title:** Industrial Battery Chargers

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1564 | Industrial Battery Chargers |

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

UL 1564 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1565

**Standard title:** Wire Positioning Devices

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1565 | Wire Positioning Devices |

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

UL 1565 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1567

**Standard title:** Receptacles and Switches Intended for Use With Aluminum Wire

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1567 | Receptacles and Switches Intended for Use With Aluminum Wire |

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

UL 1567 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1569

**Standard title:** Metal-Clad Cables

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1569 | Metal-Clad Cables |

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

UL 1569 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1573

**Standard title:** Stage and Studio Lighting Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1573 | Stage and Studio Lighting Units |

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

UL 1573 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1574

**Standard title:** Track Lighting Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1574 | Track Lighting Systems |

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

UL 1574 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1577

**Standard title:** Optical Isolators

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1577 | Optical Isolators |

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

UL 1577 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1581

**Standard title:** Reference Standard for Electrical Wires, Cables, and Flexible Cords

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1581 | Reference Standard for Electrical Wires, Cables, and Flexible Cords |

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

UL 1581 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1594

**Standard title:** Sewing and Cutting Machines

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1594 | Sewing and Cutting Machines |

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

UL 1594 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1598

**Standard title:** Luminaires

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1598 | Luminaires |

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

UL 1598 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1610

**Standard title:** Central-Station Burglar-Alarm Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1610 | Central-Station Burglar-Alarm Units |

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

UL 1610 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 162

**Standard title:** Foam Equipment and Liquid Concentrates

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 162 | Foam Equipment and Liquid Concentrates |

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

UL 162 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1635

**Standard title:** Digital Burglar Alarm Communicator System Units

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1635 | Digital Burglar Alarm Communicator System Units |

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

UL 1635 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1637

**Standard title:** Home Health Care Signaling Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1637 | Home Health Care Signaling Equipment |

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

UL 1637 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1638

**Standard title:** Visual Signaling Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1638 | Visual Signaling Appliances |

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

UL 1638 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1640

**Standard title:** Portable Power Distribution Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1640 | Portable Power Distribution Equipment |

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

UL 1640 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1647

**Standard title:** Motor-Operated Massage and Exercise Machines

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1647 | Motor-Operated Massage and Exercise Machines |

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

UL 1647 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1651

**Standard title:** Optical Fiber Cable

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1651 | Optical Fiber Cable |

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

UL 1651 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1653

**Standard title:** Electrical Nonmetallic Tubing

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1653 | Electrical Nonmetallic Tubing |

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

UL 1653 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1655

**Standard title:** Community-Antenna Television Cables

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1655 | Community-Antenna Television Cables |

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

UL 1655 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1660

**Standard title:** Liquid-Tight Flexible Nonmetallic Conduit

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1660 | Liquid-Tight Flexible Nonmetallic Conduit |

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

UL 1660 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1673

**Standard title:** Electric Space Heating Cables

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1673 | Electric Space Heating Cables |

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

UL 1673 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1676

**Standard title:** Discharge Path Resistors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1676 | Discharge Path Resistors |

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

UL 1676 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1681

**Standard title:** Wiring Device Configurations

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1681 | Wiring Device Configurations |

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

UL 1681 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1682

**Standard title:** Plugs, Receptacles, and Cable Connectors, of the Pin and Sleeve Type

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1682 | Plugs, Receptacles, and Cable Connectors, of the Pin and Sleeve Type |

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

UL 1682 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1690

**Standard title:** Data-Processing Cable

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1690 | Data-Processing Cable |

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

UL 1690 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1691

**Standard title:** Single Pole Locking - Type Separable Connectors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1691 | Single Pole Locking - Type Separable Connectors |

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

UL 1691 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1693

**Standard title:** Electric Radiant Heating Panels and Heating Panel Sets

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1693 | Electric Radiant Heating Panels and Heating Panel Sets |

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

UL 1693 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1699

**Standard title:** Arc-Fault Circuit-Interrupters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1699 | Arc-Fault Circuit-Interrupters |

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

UL 1699 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1703

**Standard title:** Flat Plate Photo Voltaic Modules and Panels

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1703 | Flat Plate Photo Voltaic Modules and Panels |

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

UL 1703 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1711

**Standard title:** Amplifiers for Fire Protective Signaling Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1711 | Amplifiers for Fire Protective Signaling Systems |

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

UL 1711 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1713

**Standard title:** Pressure Pipe and Coupling, Glass Fiber-Reinforced, for Underground Fire Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1713 | Pressure Pipe and Coupling, Glass Fiber-Reinforced, for Underground Fire Service |

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

UL 1713 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1726

**Standard title:** Automatic Drain Valves for Standpipe Systems

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1726 | Automatic Drain Valves for Standpipe Systems |

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

UL 1726 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1727

**Standard title:** Commercial Electric Personal Grooming Appliances

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1727 | Commercial Electric Personal Grooming Appliances |

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

UL 1727 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1730

**Standard title:** Smoke Detector Monitors and Accessories for Individual Living Units of Multifamily Residences and Hotel/Motel Rooms

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1730 | Smoke Detector Monitors and Accessories for Individual Living Units of Multifamily Residences and Hotel/Motel Rooms |

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

UL 1730 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1738

**Standard title:** Venting Systems for Gas-Burning Appliances, Categories II, III, and IV

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1738 | Venting Systems for Gas-Burning Appliances, Categories II, III, and IV |

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

UL 1738 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1739

**Standard title:** Pilot-Operated Pressure-Control Valves for Fire-Protection Service

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1739 | Pilot-Operated Pressure-Control Valves for Fire-Protection Service |

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

UL 1739 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 174

**Standard title:** Household Electric Storage-Tank Water Heaters

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 174 | Household Electric Storage-Tank Water Heaters |

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

UL 174 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1740

**Standard title:** Industrial Robots and Robotic Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1740 | Industrial Robots and Robotic Equipment |

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

UL 1740 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1741

**Standard title:** Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1741 | Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources |

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

UL 1741 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1769

**Standard title:** Cylinder Valves

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1769 | Cylinder Valves |

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

UL 1769 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1773

**Standard title:** Termination Boxes

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1773 | Termination Boxes |

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

UL 1773 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1776

**Standard title:** High-Pressure Cleaning Machines

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1776 | High-Pressure Cleaning Machines |

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

UL 1776 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1778

**Standard title:** Uninterruptible Power Supply Equipment

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1778 | Uninterruptible Power Supply Equipment |

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

UL 1778 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1786

**Standard title:** Nightlights

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1786 | Nightlights |

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

UL 1786 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1795

**Standard title:** Hydromassage Bathtubs

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1795 | Hydromassage Bathtubs |

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

UL 1795 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 180

**Standard title:** Liquid-Level Indicating Gauges and Tank-Filling Signals for Petroleum Products

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 180 | Liquid-Level Indicating Gauges and Tank-Filling Signals for Petroleum Products |

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

UL 180 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 181

**Standard title:** Factory-Made Air Ducts and Air Connectors

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 181 | Factory-Made Air Ducts and Air Connectors |

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

UL 181 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard


**Test standard:** UL 1812

**Standard title:** Ducted Heat Recovery Ventilators

**NRTL:** UL

**Laboratory:** UL LLC

**Status:** currently recognized

> UL 1812 | Ducted Heat Recovery Ventilators |

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

UL 1812 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard