Hazard Communication in Kentucky: Kentucky OSH and the 2024 HazCom Update
Short answer: Adopted: emergency regulation effective November 19, 2024; amended regulation effective July 1, 2025. Hazard communication in Kentucky is enforced by Kentucky OSH under Kentucky’s State Plan, and State Plans adopt federal OSHA’s 2024 update on their own timelines. Status, rule citation and dates checked October 10, 2026 against official sources linked below; not legal advice.
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Who enforces HazCom in Kentucky
Kentucky runs its own OSHA-approved State Plan. Workplace hazard communication is enforced by the Kentucky OSH Program, part of the Department of Workplace Standards in the Kentucky Education and Labor Cabinet.
“The Kentucky State Plan applies to all private sector workplaces in the state”, except areas federal OSHA keeps, including maritime employment, Tennessee Valley Authority facilities, military bases and other properties ceded to the federal government, contractors in U.S. Postal Service mail operations, and aircraft cabin crew on aircraft in operation. It also covers state and local government employers, but not federal government employers (osha.gov/stateplans/ky).
The Kentucky HazCom rule
803 KAR 2:320, Toxic and hazardous substances, Section 6, under which general industry “shall comply with 29 C.F.R. Subpart Z” (which contains 1910.1200).
Is the 2024 HazCom update in effect in Kentucky?
“803 KAR 2:320E. Toxic and hazardous substances. EFFECTIVE: November 19, 2024 … This emergency administrative regulation adopts the May 20, 2024, Occupational Safety and Health Administration (“OSHA”) final rule that amended the Hazard Communication Standard” — Kentucky Administrative Register, Vol. 51, No. 7
“51 Ky.R. 1322, 1783; eff. 7-1-2025.” — 803 KAR 2:320 history (Kentucky LRC)
The 2026 federal date extension: we could not confirm from an official Kentucky source on October 10, 2026 whether Kentucky OSH has also adopted federal OSHA’s January 15, 2026 four-month extension of the compliance dates (91 FR 1695). The 2024 rule as first published set July 20, 2026 for employers to update labels, the written program and training for substances, and January 19, 2028 for mixtures; with the extension, the federal dates are November 20, 2026 and May 19, 2028. Ask Kentucky OSH which date it enforces (contact Kentucky OSH). The cautious course is to treat the earlier date as already here.
The Cabinet’s own page says the program “may or may not adopt federal standards or policies” and invites employers to call (502) 564-3070 to check (elc.ky.gov).
Kentucky-specific differences
Kentucky law now limits state-only rules: 2025 Ky. Acts ch. 105 (HB 398) amended KRS 338.062 so the program “shall not adopt, promulgate, or enforce any occupational safety and health administrative regulation that the Occupational Safety and Health Administration or the United States Department of Labor has not promulgated, or that is more stringent than the corresponding federal provision”, with authority kept for rules on public employees (2025 Ky. Acts ch. 105). We found no Kentucky-only HazCom requirement.
The federal dates, for context
Federal OSHA’s updated standard was published May 20, 2024 (89 FR 44144) and took effect July 19, 2024. The compliance dates in 29 CFR 1910.1200(j) (eCFR, checked October 10, 2026) are:
| Who | What | Federal date |
|---|---|---|
| Chemical manufacturers, importers and distributors | Substances: comply with all modified provisions ((j)(2)(i)) | May 19, 2026 |
| All employers | Substances: as necessary, update alternative workplace labeling under (f)(6), the hazard communication program, and training for newly identified hazards ((j)(2)(ii)) | November 20, 2026 |
| Chemical manufacturers, importers and distributors | Mixtures: comply with all modified provisions ((j)(3)(i)) | November 19, 2027 |
| All employers | Mixtures: the same employer updates ((j)(3)(ii)) | May 19, 2028 |
Between May 20, 2024 and those dates, anyone covered may comply with the revised standard, the version in effect as of July 1, 2023, or both ((j)(4)). These dates already include the four-month extension OSHA published on January 15, 2026 (91 FR 1695); the 2024 rule as first published said January 19, 2026, July 20, 2026, July 19, 2027 and January 19, 2028. A State Plan that adopted the 2024 rule but not the extension, or that set its own dates, can have different deadlines, which is why the state section above matters.
What to do now (true in every state)
Every State Plan’s HazCom rule must be at least as effective as the federal one, so these basics apply whichever version your state enforces today:
- A written hazard communication program with a list of the hazardous chemicals on site, using the product identifier on each SDS. See what the written program must contain.
- A current SDS for every hazardous chemical, readily accessible to employees on every shift in their work areas. Your supplier writes the SDS and must send it with the first shipment; your job is to obtain, keep and give access to it. See SDS requirements for employers.
- Labels on shipped containers left intact, and workplace labels on containers you fill yourself. See secondary container labels.
- Training at initial assignment and whenever a new chemical hazard is introduced. See HazCom training requirements.
- The 2024 update: as revised SDSs arrive from suppliers, swap them in, and update workplace labels, the written program and training by the date that applies in your state (see above). If your state’s date is unclear, ask the agency and plan for the earliest possible date.
SDSentry keeps your library of supplier SDSs current and reachable from any phone, so swapping in revised sheets during the 2024 update is quick. SDSentry manages the SDSs your suppliers publish; it does not write them.
Tier II is a different law
EPCRA Tier II chemical inventory reporting comes from a separate federal law (the Emergency Planning and Community Right-to-Know Act, an EPA program) and is filed with state and local agencies, not with Kentucky OSH. See Tier II reporting in Kentucky.
Other State Plan states
See the 2024 HazCom update status in all State Plan states we cover.
Sources (checked October 10, 2026)
- Kentucky Administrative Register, Vol. 51, No. 7
- 803 KAR 2:320
- Kentucky Education and Labor Cabinet: State and Federal Regulations
- osha.gov: Kentucky State Plan
- eCFR: 29 CFR 1910.1200(j)
- Federal Register 91 FR 1695 (January 15, 2026)
Questions about how Kentucky OSH applies a rule to your workplace: contact Kentucky OSH.
Frequently asked questions
Has Kentucky adopted the 2024 HazCom update?
Yes. Emergency regulation 803 KAR 2:320E adopted it effective November 19, 2024, and the ordinary amendment to 803 KAR 2:320 took effect July 1, 2025.
What is the HazCom deadline for Kentucky employers?
We could not confirm whether Kentucky adopted federal OSHA's January 15, 2026 date extension. The rule as first published set July 20, 2026 for employers (substances); the extended federal date is November 20, 2026. Ask the Kentucky OSH Program.
Can Kentucky HazCom rules be stricter than federal OSHA?
Since 2025, KRS 338.062 (as amended by HB 398) bars Kentucky OSH from adopting or enforcing a rule more stringent than the corresponding federal provision, except rules for public employees.
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