Hazard Communication is consistently one of OSHA's most-cited standards, and it's easy to see why: almost every workplace has chemicals, and the rule touches a written program, every container label, a data sheet for every product, and training for every exposed employee. Miss any one leg and you're exposed. Here's the shape of it.
What HazCom requires
The Hazard Communication Standard, 29 CFR 1910.1200, is built on a simple idea: workers have a right to know the hazards of the chemicals they work with. Since its alignment with the Globally Harmonized System (GHS), it uses standardized labels and a standardized data-sheet format so the information reads the same across manufacturers.
Four obligations sit under it:
- A written hazard communication program
- Labels on containers
- A safety data sheet (SDS) for each hazardous chemical
- Employee information and training
The written program and the chemical inventory
Your written program describes how you meet the other three obligations, and it must include a list of the hazardous chemicals known to be present. That inventory is the backbone — it's how you know which SDSs you need and which containers must be labeled. A program that references "all chemicals on site" without an actual maintained list is a common finding.
Labels: six required elements
Shipped containers from the manufacturer must carry:
- Product identifier
- Signal word — "Danger" or "Warning"
- Hazard statement(s) — e.g., "Causes serious eye damage"
- Pictogram(s) — the red-diamond symbols
- Precautionary statement(s) — how to handle safely
- Supplier information — name, address, phone
There are nine GHS pictograms (health hazard, flame, exclamation mark, corrosion, and so on). Workplace containers you fill yourself can use the full label or an acceptable alternative, as long as workers can identify the hazards.
Safety data sheets: the 16-section format
Every hazardous chemical needs an SDS, and GHS fixes the order of its 16 sections — identification, hazards, composition, first-aid, firefighting, accidental release, handling and storage, exposure controls/PPE, physical and chemical properties, stability and reactivity, toxicology, and so on. Because the order is standardized, an employee (or a paramedic) always finds first-aid in Section 4 and handling in Section 7. SDSs must be readily accessible to employees during their shift — a binder no one can reach, or a portal that's down, doesn't count.
The training everyone underestimates
Employees must be trained at the time of initial assignment and whenever a new hazard is introduced — not once a year as a formality. Training has to cover how to read labels and SDSs, the hazards in their work area, and the protective measures. "We handed out a sheet" is not training; the standard expects comprehension.
Where it turns into a data problem
The hard part of HazCom isn't any single label — it's keeping the inventory, the SDS library, and the training records in sync as products change, suppliers reformulate, and people move roles. That's a moving-target records problem.
SE Worldwide keeps a live SDS library tied to your chemical inventory, flags gaps (a chemical on site with no current SDS), and tracks HazCom training against your roster so you can show who was trained on what, and when. It's part of the broader health and exposure toolkit — SDS, industrial hygiene, and exposure monitoring on one spine.
This article is general information about health, safety, and environmental regulations, not legal or compliance advice. Rules change and apply differently by site — verify against the current regulation and your own obligations. See our Terms of Use.