1910.106(b)(1)(i): Materials
Key takeaways
- 1910.106(b)(1)(i) is part of OSHA's general industry standards (29 CFR Part 1910, Subpart H).
- OSHA cited it 1 times in the last 3 years, in 1 inspections, with $8,066 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)(1)(i) ("Materials") 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
(i) Materials. 1 citations
(a) Tanks shall be built of steel except as provided in paragraphs (b)(1)(i) (b) through (e) of this section.
(b) Tanks may be built of materials other than steel for installation underground or if required by the properties of the liquid stored. Tanks located above ground or inside buildings shall be of noncombustible construction.
(c) Tanks built of materials other than steel shall be designed to specifications embodying principles recognized as good engineering design for the material used.
(d) Unlined concrete tanks may be used for storing flammable liquids having a gravity of 40° API or heavier. Concrete tanks with special lining may be used for other services provided the design is in accordance with sound engineering practice.
(e) [Reserved]
(f) Special engineering consideration shall be required if the specific gravity of the liquid to be stored exceeds that of water or if the tanks are designed to contain flammable liquids at a liquid temperature below 0 °F.
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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OSHA interpretation letters
- Above-ground 500-gallon polyethylene tank is unacceptable for storage of flammable and combustible liquids (2001-08-30)
- Fiberglass storage tanks for crude oil storage is acceptable. (1977-02-11)
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)(ii) Vents 2 citations
- 1910.106(b)(4)(iv) Tank openings other than vents 2 citations
- 1910.106(b)(7) Testing 2 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.