1926.1101(f)(1)(ii): Asbestos Breathing Zone Samples
Employers must determine employee asbestos exposure from breathing zone air samples that represent the 8-hour TWA and 30-minute short-term exposures of each employee.
Key takeaways
- 1926.1101(f)(1)(ii) is part of OSHA's construction standards (29 CFR Part 1926, Subpart Z).
- OSHA cited it 18 times in the last 3 years, in 18 inspections, with $7,500 in current penalties.
- Most citations: MI (18).
- Related part: 1926.1101(f) Exposure assessments and monitoring (211 citations).
- Free 5-minute toolbox talk for your crew below.
In this article
What this rule covers
29 CFR 1926.1101(f)(1)(ii) is one requirement inside 1926.1101 Asbestos, an OSHA construction standard (Part 1926, Subpart Z). 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
(ii) Determinations of employee exposure shall be made from breathing zone air samples that are representative of the 8-hour TWA and 30-minute short-term exposures of each employee. 18 citations
Source: eCFR, text current as of 2026-10-15. Read all of 1926.1101.
Where and how often it was cited
| Year | Citations |
|---|---|
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 7 |
| 2026 | 4 |
Top states: MI (18)
Largest penalties
| Employer | Location | Penalty for this rule |
|---|---|---|
| NORTH AMERICAN DISMANTLING CORPORATION | FLINT, MI | $2,000 |
| INNER CITY CONTRACTING, LLC | FLINT, MI | $2,000 |
| MRT ENVIRONMENTAL, INC | DETROIT, MI | $1,500 |
| ENVIRONMENTAL MANAGEMENT SPECIALISTS, INC. | BERRIEN SPRINGS, MI | $500 |
| BARNARD BUILDING AND CONSTRUCTION, LLC | KALAMAZOO, MI | $500 |
Free toolbox talk
A 5-minute crew talk on 1926.1101(f)(1)(ii), plus alerts when this rule changes. Free.
OSHA interpretation letters
None exist. OSHA has not published a letter of interpretation for 1926.1101(f)(1)(ii).
Related parts of this rule
- 1926.1101(f) Exposure assessments and monitoring 211 citations
- 1926.1101(f)(1) General monitoring criteria 123 citations
- 1926.1101(f)(1)(i) 101 citations
- 1926.1101(f)(2) Initial Exposure Assessment 66 citations
- 1926.1101(f)(2)(i) 62 citations
- 1926.1101(f)(3) Periodic monitoring 14 citations
- 1926.1101(f)(3)(i) Class I and II operations 14 citations
- 1926.1101(f)(5) Employee notification of monitoring results 5 citations
- 1926.1101(f)(2)(iii) 1 citations
- 1926.1101(f)(2)(iii)(A)
- 1926.1101(f)(6) Observation of monitoring
Get your crew competent
Trainers on Black Belt Safety: Marc Harvey, Dana Reyes
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Frequently asked questions
Where must asbestos air samples be taken?
From the breathing zone of employees.
What exposure periods must samples represent?
The 8-hour TWA and 30-minute short-term exposures of each employee.
Must each employee's exposure be represented?
Yes. Samples must be representative of the 8-hour TWA and 30-minute short-term exposures of each employee.
About this page
Sources
- 29 CFR 1926.1101 (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 2026-10-20
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.