Hazard Communication (HazCom) Training Requirements & Checklist

Hazard Communication (HazCom) Training Requirements and Checklist

Quick answer: OSHA's Hazard Communication Standard (29 CFR 1910.1200) requires every employer with hazardous chemicals to keep a written program, maintain a Safety Data Sheet for each chemical, label all containers, and train employees before their initial assignment and again whenever a new chemical hazard is introduced. The 2024 update aligns the standard with GHS Revision 7, with phased compliance deadlines running through 2026-2028.

The Four Pillars of HazCom

1. Written Program

You must maintain a written hazard communication program describing how you handle labels, safety data sheets, and training, plus a list of the hazardous chemicals in your workplace. It must be available to employees and to OSHA on request.

2. Labels

Shipped containers must carry GHS-aligned labels with six elements: product identifier, signal word ("Danger" or "Warning"), hazard statements, pictograms, precautionary statements, and supplier information. Workplace (secondary) containers must be labeled too — either with the same information or with a compliant alternative system.

3. Safety Data Sheets (SDS)

You must have an SDS for every hazardous chemical, in the standardized 16-section format, readily accessible to employees during every work shift. Keep them current and replace outdated versions promptly.

4. Training

This is where most citations occur. Employees must be trained before initial assignment to a job involving hazardous chemicals, and whenever a new hazard is introduced.

Your HazCom Training Checklist

• How to read and interpret labels and the SDS
• The physical, health, and other hazards of the chemicals in their work area
• How to detect the presence or release of a hazardous chemical
• Protective measures: safe work practices, PPE, and emergency procedures
• The details of your written program and where SDSs are kept
• Documentation of training with date and employee acknowledgment

The 2024 HazCom Update (GHS Revision 7)

OSHA's 2024 final rule modernized the standard. Employers should plan training and program updates around the phased deadlines:

Who	What changes	Compliance by
Manufacturers / importers - substances	Reclassify and relabel substances	May 19, 2026
Manufacturers / importers - mixtures	Reclassify and relabel mixtures	May 19, 2028
Employers	Update workplace labels, program, and employee training as new labels/SDSs arrive	Aligned with the above (mixtures: May 19, 2028)

During the transition you may comply with the old standard, the new one, or both — but the practical task is to retrain employees on the updated label and SDS elements as your chemical suppliers roll them out.

Frequently Asked Questions

How often is HazCom training required?

There is no fixed annual requirement. Training is required before initial assignment and whenever a new chemical hazard is introduced into the work area. Many employers refresh it annually as good practice. See our full OSHA training frequency guide.

Do I need an SDS for every product?

You need an SDS for every hazardous chemical employees may be exposed to. Consumer products used the same way and in the same amount as a typical consumer may be exempt, but when in doubt, keep the SDS.

What's the difference between a label and an SDS?

The label is the quick warning on the container; the SDS is the detailed 16-section document with full handling, hazard, and emergency information. Employees must be trained to use both.