1910.106(b)(4)(ii): Vents
Key takeaways
- 1910.106(b)(4)(ii) is part of OSHA's general industry standards (29 CFR Part 1910, Subpart H).
- OSHA cited it 2 times in the last 3 years, in 2 inspections, with $315 in current penalties.
- Related part: 1910.106(b) Tank storage (99 citations).
- Free 5-minute toolbox talk for your crew below.
In this article
What this rule covers
29 CFR 1910.106(b)(4)(ii) ("Vents") is one requirement inside 1910.106 Flammable liquids, 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
(ii) Vents. Vents for tanks inside of buildings shall be as provided in subparagraphs (2) (iv), (v), (vi)(b), and (3)(iv) of this paragraph, except that emergency venting by the use of weak roof seams on tanks shall not be permitted. Vents shall discharge vapors outside the buildings. 2 citations
Source: eCFR, text current as of 2026-10-15. Read all of 1910.106.
Where and how often it was cited
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A 5-minute crew talk on 1910.106(b)(4)(ii), plus alerts when this rule changes. Free.
OSHA interpretation letters
- Clarification of requirements for storage and use of flammable and/or combustible liquids. (2007-12-26)
Related parts of this rule
- 1910.106(b) Tank storage 99 citations
- 1910.106(b)(6) Sources of ignition 59 citations
- 1910.106(b)(2) Installation of outside aboveground tanks 23 citations
- 1910.106(b)(2)(vii) Drainage, dikes, and walls for aboveground tanks— 13 citations
- 1910.106(b)(4) Installation of tanks inside of buildings 6 citations
- 1910.106(b)(2)(ii) Spacing (shell-to-shell) between aboveground tanks 5 citations
- 1910.106(b)(5) Supports, foundations, and anchorage for all tank locations 5 citations
- 1910.106(b)(1) Design and construction of tanks 4 citations
- 1910.106(b)(4)(iv) Tank openings other than vents 2 citations
- 1910.106(b)(7) Testing 2 citations
- 1910.106(b)(1)(i) Materials 1 citations
- 1910.106(b)(5)(ii) Fire resistance
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About this page
Sources
- 29 CFR 1910.106 (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 2026-10-21
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.