Hazard Communication: Know Your Chemicals
29 CFR 1910.1200 · 29 CFR 1926.59 · This talk in Spanish
Why it matters
Hazard communication was the second most cited OSHA standard in fiscal year 2025. Adhesives, solvents, fuels, form release, cutting fluids: a job site runs on chemicals, and every container has a story the label and safety data sheet tell. If you cannot name what is in it, do not use it.
Hazards
- ⚠ Unlabeled or hand-filled containers with unknown contents
- ⚠ Mixing incompatible products, like chlorine-based cleaners with acids
- ⚠ Breathing vapors in enclosed or low spots where they collect
- ⚠ Skin and eye contact with corrosives and solvents
- ⚠ No access to safety data sheets when something goes wrong
Controls and safe practices
- ✓ Every container gets a label: product name and hazard warning, including transfer bottles.
- ✓ Read the label and SDS before first use of any product. Know the first-aid steps in advance.
- ✓ Use the PPE the SDS calls for: the right gloves, eye protection, and respirator cartridge.
- ✓ Ventilate enclosed work areas. Vapors from adhesives and fuels sink and collect low.
- ✓ Store incompatibles apart. Keep fuels away from oxidizers and ignition sources.
- ✓ Know where the SDS binder or app is, and where the eyewash is, before you need either.
What the OSHA standard says
Exact words from the official text, with a link to each paragraph.
“The requirements applicable to construction work under this section are identical to those set forth at § 1910.1200 of this chapter.”
“The employer shall not remove or deface existing labels on incoming containers of hazardous chemicals, unless the container is immediately marked with the required information.”
“The employer shall maintain in the workplace copies of the required safety data sheets for each hazardous chemical, and shall ensure that they are readily accessible during each work shift to employees when they are in their work area(s).”
“Employers shall provide employees with effective information and training on hazardous chemicals in their work area at the time of their initial assignment, and whenever a new chemical hazard the employees have not previously been trained about is introduced into their work area.”
By the numbers
- OSHA listed hazard communication (29 CFR 1910.1200) as the second most cited standard in fiscal year 2025. (OSHA, Top 10 Most Frequently Cited Standards, Fiscal Year 2025)
Site check before the talk
Walk the site and tick each line. Each line comes from the text quoted above.
- ☐Do not remove or cover labels on incoming chemical containers. (29 CFR 1910.1200(f)(9))
- ☐Keep safety data sheets on site and easy to reach every shift. (29 CFR 1910.1200(g)(8))
- ☐Train workers on chemicals in their work area when they start. (29 CFR 1910.1200(h)(1))
- ☐Train again when a new chemical hazard comes on site. (29 CFR 1910.1200(h)(1))
Quotes checked word for word against the official eCFR text on October 5, 2026. This is a summary for a crew talk, not legal advice; the full official text governs. How we check
Crew discussion questions
- What chemicals are on this site today and where are the SDS?
- Are there any unlabeled bottles or cans in the trailers or trucks right now?
- Which of today’s tasks happen in enclosed spaces where vapors collect?
- Where is the nearest eyewash or clean water source?
Applicable OSHA standards
29 CFR 1910.1200, 29 CFR 1926.59
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