29 CFR 1910 · General Industry · Subpart H

1910.119(d)(3)(i)(D): PSM: Relief System Design Information

By Black Belt Safety Editorial Team Official text as of October 15, 2026 Data updated October 21, 2026 2 min read

In plain words:

Process safety information must include the relief system design and design basis.

Key takeaways

  • 1910.119(d)(3)(i)(D) is part of OSHA's general industry standards (29 CFR Part 1910, Subpart H).
  • OSHA cited it 14 times in the last 3 years, in 14 inspections, with $83,654 in current penalties.
  • Most citations: TX (4), OH (2), PA (1).
  • Related part: 1910.119(d) Process safety information (190 citations).
  • Free 5-minute toolbox talk for your crew below.
14citations, 3 years
$83,654current penalties
14inspections
0linked injury cases
In this article
  1. What this rule covers
  2. Official text
  3. Where and how often it was cited
  4. Free toolbox talk
  5. OSHA interpretation letters
  6. Related parts of this rule
  7. Get your crew competent
  8. Frequently asked questions
  9. About this page

What this rule covers

29 CFR 1910.119(d)(3)(i)(D) is one requirement inside 1910.119 Process safety management of highly hazardous chemicals, an OSHA general industry standard (Part 1910, Subpart H). 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

(D) Relief system design and design basis; 14 citations

Source: eCFR, text current as of 2026-10-15. Read all of 1910.119.

Where and how often it was cited

YearCitations
20248
20255
20261

Top states: TX (4), OH (2), PA (1), LA (1), WI (1)

Largest penalties

EmployerLocationPenalty for this rule
AMERICAN NITRILE OPERATIONS, LLC.GROVE CITY, OH$16,550
ULTIUM CELLS LLCWARREN, OH$16,131
THE SHERWIN-WILLIAMS COMPANYGARLAND, TX$9,679
DRT AMERICA LLCRINCON, GA$9,268
AJINOMOTO FOODS, NORTH AMERICALAMPASAS, TX$8,529

Free toolbox talk

A 5-minute crew talk on 1910.119(d)(3)(i)(D), plus alerts when this rule changes. Free.




OSHA interpretation letters

None exist. OSHA has not published a letter of interpretation for 1910.119(d)(3)(i)(D).

Related parts of this rule

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

What must be included about relief systems?

The relief system design and design basis.

Is this part of process safety information?

Yes. It is listed in the equipment information under 1910.119(d)(3)(i).

Why document design basis?

So the relief system can be understood and evaluated.

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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