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

For UL 1598C, standard title is Standard for Light Emitting Diode (LED) Retrofit Luminaire Conversion Kits; nrtl is CSA; laboratory is CSA Group Testing and Certification Inc; status is currently recognized, recorded from its source on 2026-08-10.

- **Test standard:** UL 1598C _(verified: appears in the quote below)_
- **Standard title:** Standard for Light Emitting Diode (LED) Retrofit Luminaire Conversion Kits. _(verified: appears in the quote below)_
- **NRTL:** CSA _(verified: appears in the quote below)_
- **Laboratory:** CSA Group Testing and Certification Inc. _(verified: appears in the quote below)_
- **Status:** currently recognized _(our reading, not quoted from the source)_

## What the source says

> UL 1598C | Standard for Light Emitting Diode (LED) Retrofit Luminaire Conversion Kits. |

## Source

- https://www.osha.gov/nationally-recognized-testing-laboratory-program/csa

Last verified: 2026-08-10. Review by: 2026-11-08.
Part of [Which OSHA-recognized labs (NRTLs) can certify to a given test standard](https://referencesource.org/nrtl-recognized-test-standards/).