Does HazCom Training Expire? Is It Required Every Year?

OSHA has no annual HazCom rule, but it does require retraining whenever a hazard changes, and under the 2024 GHS update hazards are changing. Why Shield issues HazCom as a one-year certificate, and what the November 20, 2026 deadline requires.

Federal OSHA does not put an expiration date on HazCom training: 29 CFR 1910.1200(h)(1) requires it at initial assignment and again whenever a new physical or health hazard is introduced into the work area. In practice that second trigger fires often, which is why most employers, insurers and inspectors expect an annual refresher, and why Shield Certificates issues its HazCom/GHS certificate for one year with a renewal reminder before it lapses. It keeps a crew current as labels and Safety Data Sheets change under OSHA’s 2024 GHS update, with a documented date an inspector can read.

What OSHA Actually Requires

Training at initial assignment, before the employee works with or near hazardous chemicals.
Retraining whenever a new hazard is introduced: a new chemical class, an updated SDS or label that reveals a hazard employees were not told about, or a move to an area with different chemicals.
No fixed calendar interval. A workplace whose chemicals and labels never change could, in theory, train once.

Why a One-Year Certificate Is the Right Default

Hazards change. Suppliers have been replacing SDSs and labels since 2024 to meet the GHS update, and every replacement that shows a new hazard is a legal retraining trigger. An annual cycle catches them without tracking each sheet.
Inspectors question employees. A refresher within the last year is the simplest proof your crew can answer where the SDSs are and what a pictogram means.
Insurers and customers ask for it. Annual safety training is a common underwriting and contract expectation; a dated certificate answers the question.
Turnover. New hires need the training anyway; an annual date puts everyone on one schedule.

Shield’s certificate prints the completion and renewal dates, the employer dashboard flags each person 60 days before renewal, and renewing takes the same 45–60 minutes, updated for whatever changed in the standard that year.

The Deadline That Is Firm

OSHA’s 2024 Hazard Communication update changed hazard classes and label elements. Employers must update workplace labels, the written program and training for newly identified hazards by November 20, 2026 for substances and May 19, 2028 for mixtures. If your SDSs have been replaced since 2024, that is retraining with a date on it; Shield’s course is already written to the updated rule.

Preview chapter 1 of the HazCom course free

Frequently asked questions

Does OSHA require annual HazCom training?

Not by calendar. 29 CFR 1910.1200(h)(1) requires training at initial assignment and whenever a new hazard is introduced, which under the 2024 GHS update happens often; Shield issues a one-year certificate so crews stay current.

When do I have to retrain employees on HazCom?

When a new chemical hazard enters the work area, when an updated SDS or label reveals a hazard they were not trained on, or when they move to an area with different chemicals.

How long is a Shield HazCom certificate valid?

One year, with a renewal reminder 60 days before it lapses. The annual cycle matches what inspectors, insurers and customers expect and keeps training current with changing SDSs.

What is the HazCom deadline in 2026?

November 20, 2026: employers must update workplace labels, the written program and training for substances under OSHA’s 2024 GHS update.

Sources: OSHA 29 CFR 1910.1200, Hazard Communication; Federal Register, May 20, 2024, Hazard Communication Standard final rule

HazCom/GHS Safety Certification, updated for the 2024 rule: 45–60 minutes, English and Spanish, one-year certificate with renewal reminders, $24 until November 20, 2026.