OSHA HazCom Program Requirements (2026 Guide)

What does OSHA require in a written hazard communication program?

Short answer: A written hazard communication program has three mandatory contents under 29 CFR 1910.1200(e): a description of how you will meet the labelling, safety data sheet and training requirements; a list of the hazardous chemicals known to be present, using a product identifier that matches the corresponding safety data sheet; and the methods you will use to tell employees about the hazards of non-routine tasks. The chemical list is the part most programs get wrong, because the identifier on the list has to match the identifier on the sheet.

Most facilities have safety data sheets. Far fewer have a hazard communication program — the written document that ties the sheets, the labels and the training together and says who is responsible for each. The distinction matters because the standard requires the program in writing, and an inspector asking for it is not asking for the SDS binder.

This guide is for safety managers, facility supervisors, compliance officers and anyone who has been handed responsibility for hazard communication and needs to know what the written document must actually contain. It covers the three required elements of the program, the training obligation in paragraph (h), and where the chemical list usually breaks.

Why this matters.
Hazard Communication was the second most frequently cited OSHA standard in fiscal year 2025, behind only construction fall protection (OSHA Top 10). The obligations that produce that exposure here are documentary rather than chemical: a written program that exists, a chemical list that matches the sheets, and training delivered at initial assignment. Each of those is fixable before an inspector arrives, and none of them are fixed by buying anything.

The three things the written program must contain

Paragraph (e) requires employers to "develop, implement, and maintain at each workplace, a written hazard communication program." Three words in that sentence carry weight. Develop means it exists on paper. Implement means it reflects what actually happens. At each workplace means a single corporate program filed at head office does not automatically satisfy a site.

1. How you will meet labels, safety data sheets and training

The program must describe how the requirements for labels and other forms of warning, safety data sheets, and employee information and training will be met. This is the section most often written as a restatement of the regulation. It should instead be specific to your site: who checks incoming containers for labels, where the sheets live, who delivers training and how it is recorded.

2. A list of the hazardous chemicals known to be present

The list must use "a product identifier that is referenced on the appropriate safety data sheet." That phrase is the whole compliance test. If your list says "degreaser, blue" and the sheet says "Product XR-40 Industrial Degreaser," the list fails — not because the chemical is unsafe, but because nobody can get from one document to the other. The list may be compiled for the workplace as a whole or for individual work areas.

3. Methods for informing employees about non-routine tasks

The forgotten element. Annual tank cleaning, a one-off line purge, a contractor entering a vessel — these are non-routine, and the program must state how employees will be told about their hazards. Where the non-routine task is entry into a permit space, this obligation runs alongside a separate standard entirely; see permit-required confined space requirements.

The training obligation is separate, and it has a deadline

Paragraph (h) is where most programs are thinnest. Employers must 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.

Read that second trigger carefully. It is keyed to a new hazard, not a new product. Swapping one solvent for a chemically similar one may not trigger retraining; introducing the site's first corrosive does, even if the volume is trivial. Annual refresher training is a common and sensible practice, but the standard's trigger is the new hazard, not the calendar.

What counts as "information" under (h)(2)

• The requirements of the hazard communication standard itself
• Any operations in their work area where hazardous chemicals are present
• The location and availability of the written program, including the required chemical list(s) and the safety data sheets

What counts as "training" under (h)(3)

• Methods and observations used to detect the presence or release of a hazardous chemical in the work area
• The physical, health, simple asphyxiation, combustible dust and pyrophoric gas hazards of the chemicals present
• The measures employees can take to protect themselves — work practices, emergency procedures and personal protective equipment
• The details of the hazard communication program, including an explanation of the labelling system and the safety data sheet, and how employees can obtain and use the hazard information

That last bullet is the one that ties the program back to the documents. Training people that sheets exist is not the requirement; training them to read a safety data sheet and to decode GHS pictograms and HazCom labels is.

Where the "simple asphyxiation" and "combustible dust" wording comes from

Those hazard classes are named explicitly in (h)(3)(ii), and their presence in the text is a useful reminder that hazard communication is not only about liquids in drums. A nitrogen purge line is a simple asphyxiation hazard. A sanding operation generating fine organic dust is a combustible dust hazard. Neither arrives with a label on a bottle, and both fall inside the training obligation. Where an atmosphere can displace oxygen, the program should connect to your monitoring practice — see the portable gas detectors and personal gas detectors ranges.

How the program connects to the equipment you actually buy

A written program is not a purchasing document, but it drives purchasing in one specific way: the protective measures you train on in (h)(3)(iii) have to exist. If training says corrosive handling requires splash goggles and chemical-resistant gloves, then those have to be present, correct and reachable.

The hand-off runs through Section 8 of each sheet. Where Section 8 names a glove category rather than a material, close the gap with the chemical resistant glove guide and the chemical resistant gloves range. Where it calls for eye protection against a splash rather than an impact, direct-vent vs indirect-vent goggles and safety glasses vs goggles for chemical splash cover the distinction. Where skin or clothing contact is foreseeable, Tyvek vs Tychem coveralls covers the barrier difference that matters for chemical splash.

Respiratory protection is the one area where hazard communication hands off to a second written programme of its own. If any chemical in your inventory requires a respirator, written respiratory protection program requirements covers what that separate document must contain, and ACGIH TLV vs OSHA PEL respirator selection covers reading the exposure limits that drive it.

Building the chemical list without missing half the site

1. Walk the site, not the purchasing records. Purchasing misses donated, sampled, contractor-left and legacy containers.
2. Record the product identifier exactly as printed on the container. Not a nickname, not a shorthand.
3. Match each identifier to a current safety data sheet. If no sheet exists, request it from the supplier before the container is used again.
4. Note the work area for each chemical. The list may be site-wide or per-area, and per-area lists make the training obligation far easier to satisfy.
5. Flag anything with no sheet and no supplier. Unidentified containers are a disposal problem, not a labelling problem.
6. Reconcile the list against storage. Walking the list past the shelves is how incompatibilities get found — see incompatible chemical storage and segregation.
7. Date it and set a review interval. An undated list cannot be shown to be current.

A worked example: a small manufacturing site

A 40-person shop runs a parts washer, a paint booth, a small acid dip and a janitorial closet. The written program names the plant manager as responsible, states that incoming containers are checked at goods-in, places the sheet binder in the break room and on the shared drive, and names the supervisor who delivers training.

The chemical list runs to eleven entries, each carrying the product identifier from the container. Two entries have no current sheet — a legacy thinner and an unlabelled drum. The thinner's sheet is requested from the supplier; the drum goes to disposal because nobody can identify it.

Training under (h)(3) covers the four required areas. Detection: solvent odour thresholds and where the fixed monitor sits. Hazards: flammability in the booth, corrosivity at the dip, and the combustible-dust hazard from the sanding bench that nobody had previously classified. Protective measures: goggles and gloves at the dip, respirators in the booth. Programme details: how to find a sheet and how to read Section 8. Non-routine tasks are addressed by a written permit for the annual booth clean-down, which also triggers the OSHA emergency action plan requirements review.

Nothing in that example required new equipment. It required a walk, a list and an afternoon.

Frequently asked questions about the OSHA HazCom program

Does OSHA require a written hazard communication program?

Yes. 1910.1200(e) requires employers to develop, implement and maintain a written hazard communication program at each workplace where employees are exposed to hazardous chemicals.

What must the written HazCom program include?

Three things: a description of how labelling, safety data sheet and training requirements will be met; a list of the hazardous chemicals known to be present using a product identifier referenced on the corresponding sheet; and the methods used to inform employees of the hazards of non-routine tasks.

Is a binder of safety data sheets the same as a HazCom program?

No, and this is the most common misunderstanding. The sheets are one component the program must describe. A binder with no written program does not satisfy paragraph (e).

When must HazCom training be delivered?

At the time of an employee's initial assignment, and whenever a new chemical hazard they have not previously been trained about is introduced into their work area.

Is annual HazCom refresher training required?

The standard's triggers are initial assignment and a newly introduced hazard, not a fixed annual interval. Annual refreshers are a widespread and defensible practice, but they are a policy choice rather than the literal trigger in paragraph (h).

What must HazCom training actually cover?

Methods to detect the presence or release of a hazardous chemical; the physical, health, simple asphyxiation, combustible dust and pyrophoric gas hazards present; the protective measures employees can take; and the details of the program including the labelling system and how to read a safety data sheet.

Does the chemical list have to match the safety data sheets?

Yes. The list must use a product identifier that is referenced on the appropriate safety data sheet. A list of informal names that cannot be traced to a sheet does not meet the requirement.

Can the chemical list be organised by work area?

Yes. The list may be compiled for the workplace as a whole or for individual work areas. Per-area lists usually make the training obligation easier to demonstrate.

What are non-routine tasks under HazCom?

Work outside normal operations — annual tank cleaning, a line purge, maintenance opening a closed system. The program must state how employees will be informed of the hazards of such tasks before they perform them.

Why does the standard mention combustible dust and simple asphyxiation?

Both are named in the training requirement at (h)(3)(ii). They are hazards that typically arrive without a labelled container — dust from a process, or an inert gas displacing oxygen — and they are inside the training obligation regardless.

Does one corporate program cover every site?

The requirement is a written program at each workplace. A corporate template can form the backbone, but each site's program has to reflect that site's chemicals, work areas, responsibilities and document locations.

Do temporary and contract workers need HazCom training?

Employees must be trained on the hazards in their work area. Where a host employer and a staffing or contracting employer both have a relationship with the worker, both have obligations, and the written program should state how information is exchanged between them.

Does the 2024 HazCom update change the written program requirements?

OSHA published the amended standard on May 20, 2024, effective July 19, 2024, aligning it with a newer GHS revision. The changes are concentrated in classification and labelling rather than in the structure of paragraph (e). OSHA has since issued a compliance-date extension notice, so verify current phase-in deadlines against OSHA directly.

Where does hazard communication stop and HAZWOPER begin?

Hazard communication applies wherever hazardous chemicals are present in a workplace. HAZWOPER applies only to five specific categories of operation, such as hazardous waste site clean-up and emergency response to releases. See HazCom vs HAZWOPER.

Further reading on this site

• How to read a safety data sheet — the 16 sections, and the four OSHA does not enforce.
• GHS pictograms and HazCom labels explained — the labelling half of the program.
• HazCom vs HAZWOPER — which standard actually applies to your operation.
• Written respiratory protection program requirements — the second written programme HazCom often triggers.
• OSHA cleaning chemical safety — hazard communication applied to custodial operations.