1926.1210(a): Entry Supervisor Knows the Hazards
The entry supervisor must be familiar with and understand the hazards that may be faced during entry, including the mode, signs or symptoms, and consequences of the exposure.
Key takeaways
- 1926.1210(a) is part of OSHA's construction standards (29 CFR Part 1926, Subpart AA).
- OSHA cited it 2 times in the last 3 years, in 2 inspections, with $9,034 in current penalties.
- 1 death is linked to inspections that cited this rule.
- Free 5-minute toolbox talk for your crew below.
In this article
What this rule covers
29 CFR 1926.1210(a) is one requirement inside 1926.1210 Duties of entry supervisors, an OSHA construction standard (Part 1926, Subpart AA). 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) Is familiar with and understands the hazards that may be faced during entry, including information on the mode, signs or symptoms, and consequences of the exposure; 2 citations
Source: eCFR, text current as of 2026-10-15. Read all of 1926.1210.
Injuries linked to this rule
1 death is linked to inspections where OSHA cited 1926.1210(a).
At 5:00 p.m. on July 13, 2024, Employee #1 entered a manhole to tape piping in preparation for pouring concrete inverts. Shortly after entry, a coworker, stationed topside, observed that Employee #1 appeared pale and was sweating profusely. When asked, Employee #1 indicated difficulty breathing.…
Where and how often it was cited
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A 5-minute crew talk on 1926.1210(a), plus alerts when this rule changes. Free.
OSHA interpretation letters
None exist. OSHA has not published a letter of interpretation for 1926.1210(a).
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Frequently asked questions
What must the entry supervisor know?
The hazards that may be faced during entry, including the mode, signs or symptoms, and consequences of exposure.
Is understanding required, not just awareness?
Yes. The supervisor must be familiar with and understand the hazards.
Why does this matter?
The entry supervisor decides whether entry can begin and continue.
About this page
Sources
- 29 CFR 1926.1210 (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 2026-10-19
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.