1910.307(c)(1): Intrinsically safe
Key takeaways
- 1910.307(c)(1) is part of OSHA's general industry standards (29 CFR Part 1910, Subpart S).
- OSHA cited it 9 times in the last 3 years, in 9 inspections, with $48,765 in current penalties.
- Related part: 1910.307(c) Electrical installations (146 citations).
- Free 5-minute toolbox talk for your crew below.
In this article
What this rule covers
29 CFR 1910.307(c)(1) ("Intrinsically safe") is one requirement inside 1910.307 Hazardous (classified) locations, an OSHA general industry standard (Part 1910, Subpart S). The official text below is copied word for word from the Electronic Code of Federal Regulations (eCFR). The numbers, injury cases and training on this page show how OSHA enforces it on real job sites.
Official text
(1) Intrinsically safe. Equipment and associated wiring approved as intrinsically safe is permitted in any hazardous (classified) location for which it is approved; 9 citations
Source: eCFR, text current as of 2026-10-15. Read all of 1910.307.
Where and how often it was cited
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OSHA interpretation letters
- Application of OSHA standards when an employer is using the "Focused Electrode Leak Locator" (FELL) (2023-03-29)
Related parts of this rule
- 1910.307(c) Electrical installations 146 citations
- 1910.307(c)(2) Approved for the hazardous (classified) location 32 citations
- 1910.307(c)(2)(i) 31 citations
- 1910.307(c)(3) Safe for the hazardous (classified) location 17 citations
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About this page
Sources
- 29 CFR 1910.307 (eCFR), text current as of 2026-10-15
- U.S. Department of Labor enforcement data: OSHA inspections, citations and accident records, copied nightly; data as of 2026-10-20
3-year window. Federal OSHA only; state-plan rules are not counted. Plain-language text is a summary, not legal advice; the official text controls. Black Belt Safety is not part of OSHA or the Department of Labor.