29 CFR 1910 · General Industry · Subpart J

1910.146(j)(1): Entry Supervisor Knows the Hazards

By Black Belt Safety Editorial Team Official text as of October 15, 2026 Data updated November 6, 2026 3 min read

In plain words:

The entry supervisor must know the hazards that may be faced during confined space entry, including how exposure happens, its signs or symptoms, and its consequences.

Key takeaways

  • 1910.146(j)(1) is part of OSHA's general industry standards (29 CFR Part 1910, Subpart J).
  • OSHA cited it 3 times in the last 3 years, in 3 inspections, with $2,240 in current penalties.
  • 1 death is linked to inspections that cited this rule.
  • Related part: 1910.146(j) Duties of entry supervisors (37 citations).
  • Free 5-minute toolbox talk for your crew below.

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3citations, 3 years
$2,240current penalties
3inspections
1linked 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. Related parts of this rule
  8. Get your crew competent
  9. Frequently asked questions
  10. About this page

What this rule covers

29 CFR 1910.146(j)(1) is one requirement inside 1910.146 Permit-required confined spaces, an OSHA general industry standard (Part 1910, Subpart J). 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) Knows the hazards that may be faced during entry, including information on the mode, signs or symptoms, and consequences of the exposure; 3 citations

Source: eCFR, text current as of 2026-10-15. Read all of 1910.146.

See every company cited for this rule.

Export the list: 3 inspections cited 1910.146(j)(1) in the last 3 years, with employer, location, penalty and date.

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Injuries linked to this rule

1 death is linked to inspections where OSHA cited 1910.146(j)(1).

Employee dies inside tanker trailer
2024-01-18 · Fatal · NORTH CHARLESTON, SC

At 9:15 a.m. on January 18, 2024, Employee #1 was working inside a 7,000-gallon tanker trailer. Employee #1 was tasked with inspecting the damage of the interior of the tanker. Employee #1 was in the early stages of the tank inspection when he lost consciousness.…

Where and how often it was cited

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OSHA interpretation letters

None exist. OSHA has not published a letter of interpretation for 1910.146(j)(1).

Related parts of this rule

Get your crew competent

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

Frequently asked questions

What must the entry supervisor know?

The hazards that may be faced during entry.

What details about exposure must they know?

The mode, signs or symptoms, and consequences of the exposure.

Who does this rule apply to?

The entry supervisor.

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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