# UL 745-2-31 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard

For UL 745-2-31, standard title is Particular Requirements for Diamond Core Drills; nrtl is TUV; laboratory is TUV Rheinland of North America, Inc; status is currently recognized, recorded from its source on 2026-08-10.

- **Test standard:** UL 745-2-31 _(verified: appears in the quote below)_
- **Standard title:** Particular Requirements for Diamond Core Drills _(verified: appears in the quote below)_
- **NRTL:** TUV _(verified: appears in the quote below)_
- **Laboratory:** TUV Rheinland of North America, Inc. _(verified: appears in the quote below)_
- **Status:** currently recognized _(our reading, not quoted from the source)_

## What the source says

> UL 745-2-31 | Particular Requirements for Diamond Core Drills |

## Source

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

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/).