The OSHA HazCom Deadline: What Employers Must Do by November 20, 2026
Short answer: OSHA updated its Hazard Communication Standard in 2024 to align with the 7th revision of the Globally Harmonized System (GHS). For employers, the compliance deadline is November 20, 2026 — by then you must update your workplace labels, your written HazCom program, and your employee training to the new format, with a current safety data sheet on file for every hazardous product. This applies to businesses of every size. SDSentry ($24 per location per month) is built to get a small employer ready — SDS library, GHS labels, documented training, and the written program in one place. Here is the full picture.
The detail that decides it — Your November 20, 2026 checklist, What changed, and The compliance timeline — is set out below.
Free, no signup: the SDS binder builder at sdsentry.0xpi.com/sds-binder.html turns a pasted list of the products you keep on site into one printable index of their current safety data sheets.
What changed
OSHA finalized the updated Hazard Communication Standard (29 CFR 1910.1200, often called "HCS 2024") in May 2024, effective July 19, 2024. It aligns U.S. rules with GHS Revision 7 and updates hazard classifications, label elements, and parts of the 16-section safety data sheet format. The changes are being phased in, with different dates for chemical manufacturers and for employers.
The compliance timeline
In January 2026 OSHA extended the original deadlines by four months. The current dates:
| Who | For substances | For mixtures |
|---|---|---|
| Chemical manufacturers, importers & distributors | May 19, 2026 | November 19, 2027 |
| Employers (workplace labels, written program, training) | November 20, 2026 | May 19, 2028 |
Does this apply to my business?
Almost certainly yes. The Hazard Communication Standard covers any employer whose employees may be exposed to a hazardous chemical in the course of their work. A small animal shelter using disinfectants, a cleaning company with bleach and degreasers, an auto body shop with solvents and paints, a dental or veterinary practice with sterilants, a pool-service route with chlorine and acid — all are covered, the same as a large manufacturer. There is no small-business exemption from HazCom.
One exception to the date: if your state runs its own OSHA-approved State Plan (for example California, Washington, Oregon, Michigan, Virginia, North Carolina or Iowa), the state adopts its own version of the updated rule and its dates can differ. Check with your state program, or see the 2024 update status in all 22 private-sector State Plans.
Your November 20, 2026 checklist
- Update your chemical inventory and SDSs. Make sure you have the most recent safety data sheet your supplier has provided for every hazardous product on site, and file updated sheets as they arrive. OSHA's inspection directive (CPL 02-02-079) says HCS 2024 does not require employers to contact suppliers for new sheets for products they already have sheets for.
- Update workplace and secondary-container labels to the new GHS-aligned elements (pictograms, signal word, hazard and precautionary statements).
- Update your written HazCom program (required by 29 CFR 1910.1200(e)) to reflect the current standard, your chemical list, and your procedures.
- Retrain employees on the revised label elements and SDS changes, and document who was trained and when.
How SDSentry gets you ready
SDSentry is HazCom and SDS software built for small employers, and it covers exactly these four items in one place: a per-location SDS library with multi-source lookup (and your own uploads), GHS secondary-container labels, per-product training guides with e-signature records, and the written HazCom program — plus OSHA 300 recordkeeping and a no-login Shared SDS Binder so sheets are accessible during every shift. It is a flat $24 per location per month with unlimited users and a 7-day free trial, so a small business can be inspection-ready well before the deadline.
Get ready for the deadline — start free
Frequently asked questions
When is the OSHA HazCom 2024 deadline for employers?
For employers, workplace labels, the written Hazard Communication program, and employee training must reflect the updated GHS-aligned format by November 20, 2026 (for substances). This date was extended four months from the original July 20, 2026. The parallel employer deadline for mixtures is May 19, 2028.
Does the November 20, 2026 date apply in states with their own OSHA plan?
Not automatically. About two dozen states and territories run an OSHA-approved State Plan instead of federal OSHA (for example California, Washington, Oregon, Michigan, Virginia, North Carolina and Iowa). A State Plan must adopt standards at least as effective as OSHA's, but it adopts its own version of the updated Hazard Communication rule, and its compliance dates can differ. If your state runs its own plan, check the date with your state program. State and local government employers are covered only where a State Plan covers public employees.
Does the HazCom 2024 update apply to small businesses?
Yes. OSHA's Hazard Communication Standard applies to any employer whose workers may be exposed to hazardous chemicals, regardless of company size. A small shelter, clinic, shop, or cleaning company with disinfectants, solvents, or other hazardous products is covered the same as a large facility.
What does an employer have to change by the deadline?
Four things: update workplace and secondary-container labels to the new format, update your written HazCom program, retrain employees on the revised label elements and safety data sheet changes, and keep the most recent SDS your supplier has provided for each product (HCS 2024 does not require you to request new sheets for products you already have sheets for).
What happens if a workplace is not compliant?
Hazard Communication is No. 2 on OSHA's preliminary FY2026 list of most frequently cited standards (osha.gov/top10citedstandards, checked Oct 2026). In our own dataset of federal HazCom citations, the written program and training account for most citations, followed by safety data sheets and labels. Verify your specific obligations at osha.gov and with a qualified safety professional.
A printable checklist of everything to fix before November 20, 2026. We’ll email it to you — no account needed.