The OSHA compliance research platform built on the entire federal record.
Ask any OSHA compliance question and get an answer drawn from the federal enforcement record, the current 29 CFR standards, and OSHA's interpretation letters. Every claim links to its .gov source.
- Coverage
- The federal record
- Standards
- 29 CFR 1910 + 1926
- Citations
- Every claim links to .gov
- Snapshot
- JUNE 2026
The record
Ask it like you'd ask a consultant
Group lockout under 29 CFR 1910.147(f)(3) requires a single authorized employee to take primary responsibility for an identifiable group of workers operating under a group lockout device 1. The procedure must ensure equivalent protection to a personal lockout for each crew member, and OSHA's 1996 Letter of Interpretation clarified that contractor employees count toward the group 2.
- Fig.
- 01
- Source
- Live production query
- Citations
- 2 .gov sources
- Standard
- 29 CFR 1910.147
Open every source we cite
An answer you can't check is a liability you can't defend. Cairn reads the record, finds the controlling source, and writes the answer from what that source says.
Every claim carries a numbered reference you can open, read, and hand to a CFO, a board, or an OSHA Area Director. When the record is silent, Cairn says so instead of guessing.
The 29 CFR standard text your inspector opens, updated as the rules change.
Decades of OSHA letters, directives, and enforcement memos, cited by standard number and date.
The full federal enforcement record: inspections, violations, accident narratives, and penalty histories.
Investigation reports, exposure science, and industry safety research, surfaced when they match your question.
The tools your team opens first
Plain-language questions return cited answers from regulatory text, agency interpretations, the enforcement record, and adjacent safety research.
The full federal enforcement record: inspections, violations, accident narratives, and penalty histories for any establishment.
Compare your Total Recordable Incident Rate (TRIR) and Days Away, Restricted, or Transferred (DART) rate against your NAICS code.
Generate a Letter of Interpretation request from any chat, edit the fields, and export a print-ready PDF on company letterhead.
OSHA has rules for your industry
Cairn ships with NAICS-aware context, so your queries return the standards, citations, and benchmarks that apply to your operations.
From the field guides
When fall protection is required — the 6-foot construction trigger, 4 ft in general industry, 10 ft on scaffolds, 15 ft in steel erection — grounded in the CFR. 1926.501(b)(13) is the most-cited construction standard, with 109,561 citations on record.
What the HazCom standard requires — the written program, SDSs, labels, and training — and why 1910.1200(e)(1) is the single most-cited OSHA standard, with 209,776 citations on record.
The energy-control procedures, annual periodic inspection, and training 1910.147 demands — a perennial Top 10 OSHA citation — explained with the controlling CFR text and real enforcement data.
OSHA publishes the rules, the letters, and every citation it writes. Cairn reads all of it and points you back to the .gov page behind each claim.
Bring your hardest compliance question.
A 30-minute walkthrough against your own citations. Annual contracts, Net-30.