29 CFR 1910 · General Industry · Subpart T

1910.420(a): Diving Safe Practices Manual

By Black Belt Safety Editorial Team Official text as of October 15, 2026 Data updated October 20, 2026 3 min read

In plain words:

Diving employers must develop and maintain a safe practices manual and make it available at the dive location to each dive team member.

Key takeaways

  • 1910.420(a) is part of OSHA's general industry standards (29 CFR Part 1910, Subpart T).
  • OSHA cited it 4 times in the last 3 years, in 4 inspections, with $171,726 in current penalties.
  • 3 deaths are linked to inspections that cited this rule.
  • Free 5-minute toolbox talk for your crew below.
4citations, 3 years
$171,726current penalties
4inspections
3linked deaths
In this article
  1. What this rule covers
  2. Official text
  3. Injuries linked to this rule
  4. Where and how often it was cited
  5. Free toolbox talk
  6. OSHA interpretation letters
  7. Get your crew competent
  8. Frequently asked questions
  9. About this page

What this rule covers

29 CFR 1910.420(a) ("General") is one requirement inside 1910.420 Safe practices manual, an OSHA general industry standard (Part 1910, Subpart T). 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

(a) General. The employer shall develop and maintain a safe practices manual which shall be made available at the dive location to each dive team member. 4 citations

Source: eCFR, text current as of 2026-10-15. Read all of 1910.420.

Injuries linked to this rule

3 deaths are linked to inspections where OSHA cited 1910.420(a).

Employee drowns while diving for shellfish
2024-10-02 · Fatal · KETCHIKAN, AK

At 3:18 p.m. on October 2, 2024, Employee #1, employed as a shellfish fishing diver near Sisters Island, was diving for Geoducks in an area experiencing strong tides and rough seas. After starting his second dive of the day, Employee#1 radioed the tender aboard the…

See all 3 cases

Full case list with employer, penalty, filters and download is part of OSHA Data (Purple Belt).

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Where and how often it was cited

Free toolbox talk

A 5-minute crew talk on 1910.420(a), plus alerts when this rule changes. Free.




OSHA interpretation letters

None exist. OSHA has not published a letter of interpretation for 1910.420(a).

Get your crew competent

Trainers on Black Belt Safety: Marc Harvey, Dana Reyes

Trainers and suppliers: feature your business on this rule for $25/month.

Frequently asked questions

Does a diving employer need a written safe practices manual?

Yes. The employer must develop and maintain one.

Where must the manual be kept?

It must be made available at the dive location.

Who must have access to it?

Each dive team member.

About this page

Sources

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.

Written and reviewed by

Black Belt Safety Editorial Team

Site Safety Officer and Safety Professional

OSHA 30 · CPR · USACE CQM

Written and reviewed by the Black Belt Safety team. Every post is checked against the OSHA standard or agency source it cites.

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