Datasets:

referencesource
/

nrtl-recognition-scopes

pretty_name: >-
  Which OSHA NRTL is recognized for which test standard: all 21 labs' scopes of
  recognition, cross-referenced
license: other
license_name: source-terms-cited
license_link: https://referencesource.org/nrtl-recognition-scopes/
language:
  - en
tags:
  - reference-data
  - provenance
  - referencesource-org
configs:
  - config_name: default
    data_files:
      - split: train
        path: data/records.jsonl

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

Canonical, always-current version: https://referencesource.org/nrtl-recognition-scopes/ Machine-readable: https://referencesource.org/nrtl-recognition-scopes/data.json — this mirror is a point-in-time copy.

Last verified: 2026-09-28
Stale after: 2027-01-06 (past this date, prefer the canonical copy — it re-verifies on a cadence this snapshot does not)
Records: 3325

For every OSHA Nationally Recognized Testing Laboratory (NRTL), each test standard the lab is currently recognized for, taken from the lab's own scope-of-recognition page on osha.gov. One record per lab-standard pair. OSHA publishes each lab's scope on a separate page and publishes no cross-lab view, so answering 'which NRTLs can certify to UL 507?' or 'is DEKRA recognized for ANSI/AAMI ES 60601-1?' or 'which labs besides UL can certify commercial cooking appliances?' today means opening up to 21 pages and searching each one. The recognition matters commercially: a product that 29 CFR 1910.7 requires to be NRTL-certified must be certified by a lab whose scope covers the applicable standard, and manufacturers choosing a lab, buyers verifying a certification mark, and safety engineers checking whether a mark is valid for a given standard all need the standard-to-lab direction that OSHA does not publish.

Provenance — what every record carries

Every record carries source (the URL the value was read from) and source_quote (a verbatim quote from that page stating it). A value you cannot check against its page is indistinguishable from an invented one; these can all be checked. Each record is also individually addressable on the canonical site at its url.

Licence position

US federal government work. osha.gov pages are publications of a federal agency and carry no copyright; each record cites the lab's scope page and quotes the table row verbatim.

Facts are not copyrightable; what this dataset takes from each source is a fact plus a short attributed quote linking back to the page that states it.

Sources

Fields

See any record in data/records.jsonl — field names are self-describing, and the canonical page for each record renders them with labels: https://referencesource.org/nrtl-recognition-scopes/