# FM 3611 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard

For FM 3611, standard title is Nonincendive Electrical Equipment for Use in Class I and II, Division 2, and Class III, Divisions 1 and 2, Hazardous (Classified) Locations; nrtl is SGS; laboratory is SGS North America, Inc; status is currently recognized, recorded from its source on 2026-08-10.

- **Test standard:** FM 3611 _(verified: appears in the quote below)_
- **Standard title:** Nonincendive Electrical Equipment for Use in Class I and II, Division 2, and Class III, Divisions 1 and 2, Hazardous (Classified) Locations _(verified: appears in the quote below)_
- **NRTL:** SGS _(verified: appears in the quote below)_
- **Laboratory:** SGS North America, Inc. _(verified: appears in the quote below)_
- **Status:** currently recognized _(our reading, not quoted from the source)_

## What the source says

> FM 3611 | 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/sgs

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/).