# ANSI Z83.17 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard For ANSI Z83.17, standard title is Direct Gas Fired Door Heaters; status is no longer recognized, recorded from its source on 2026-08-10. - **Test standard:** ANSI Z83.17 _(verified: appears in the quote below)_ - **Standard title:** Direct Gas Fired Door Heaters _(verified: appears in the quote below)_ - **Status:** no longer recognized _(our reading, not quoted from the source)_ ## What the source says > ANSI Z83.17 | Direct Gas Fired Door Heaters | ## Source - https://www.osha.gov/nationally-recognized-testing-laboratory-program/standards-no-longer-recognized 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/).