# TIA 4950 — Which OSHA NRTL is recognized for which test standard: all 21 labs' scopes of recognition, cross-referenced

For TIA 4950, laboratory is Eurofins Electrical and Electronic Testing NA, Inc; standard title is Requirements for Battery-Powered, Portable Land Mobile Radio Applications in Class I, II, and III, Division 1, Hazardous (Classified) Locations, verified against its source on 2026-08-10.

- **Laboratory:** Eurofins Electrical and Electronic Testing NA, Inc. _(verified: appears in the quote below)_
- **Standard number:** TIA 4950 _(verified: appears in the quote below)_
- **Standard title:** Requirements for Battery-Powered, Portable Land Mobile Radio Applications in Class I, II, and III, Division 1, Hazardous (Classified) Locations _(verified: appears in the quote below)_

## What the source says

> 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/met

Last verified: 2026-08-10. Review by: 2026-12-08.
Part of [Which OSHA NRTL is recognized for which test standard: all 21 labs' scopes of recognition, cross-referenced](https://referencesource.org/nrtl-recognition-scopes/).