Section 2: Hazard Identification

This is where the signal word, hazard statements, and precautionary statements you'd look up in the H-code and P-code references actually appear on the SDS.

Section number: 2
Heading: Hazard Identification
Content status: Mandatory content
Required information: (a) classification per §1910.1200(d)(1), except (d)(1)(ii)
(b) signal word, hazard statement(s), symbol(s), precautionary statement(s) per (f) (symbols may be black-and-white graphics or symbol names)
(c) hazards classified under (d)(1)(ii)
(d) hazards not otherwise classified identified during classification
(e) where an ingredient of unknown acute toxicity is present at >=1% and the mixture is not classified on whole-mixture testing, a statement that X% of the mixture consists of ingredient(s) of unknown acute toxicity.

Reference only. Not legal or regulatory advice. Verify against the primary source before you act.

Adjacent sections

See the whole sheet

SDS Section Guide lays out all sixteen sections in order with what each one must carry.

Sources

29 CFR 1910.1200 Appendix D (Table D.1), post-2024-HazCom-update text — as of 2026-07-13

Sections 1 to 11 and 16 carry mandatory content. Sections 12 to 15 must appear as headings, but OSHA does not enforce their content.

open the source

Data vintage

Data: Safety data sheet 16-section structure, U.S. Occupational Safety and Health Administration current revision (77 FR 17884, Mar 26 2012; 89 FR 44459, May 20 2024; 91 FR 594-598, Jan 8 2026), retrieved 2026-07-13, 16 sections.