29 CFR § 1910.1200 — Hazard communication
29 CFR — Labor · OSHA / DOL
29 CFR 1910.1200 is the Hazard Communication Standard (HCS) — often called HazCom or 'right to know.' Every employer with hazardous chemicals (most workplaces have at least cleaning supplies, fuels, paints, or industrial chemicals) must have: a WRITTEN HazCom plan, a chemical inventory, SDS for every hazardous chemical accessible to employees during all shifts, GHS-compliant labels on every container, and employee training. HazCom is consistently in OSHA's top-5 most-cited standards. Common citations: missing or outdated SDS, no written plan, no training documentation, mislabeled containers (especially secondary containers from production transfers).
Regulation summary
29 CFR 1910.1200 requires employers whose employees may be exposed to hazardous chemicals to implement a hazard communication program. The program must include: (a) a written hazard communication plan; (b) chemical inventory list; (c) Safety Data Sheets (SDS) for every hazardous chemical, accessible to employees during all work shifts; (d) labels on every chemical container per GHS standards; (e) employee training on chemical hazards, label interpretation, SDS use, and protective measures; and (f) trade secret protection provisions. The standard aligns with the United Nations Globally Harmonized System (GHS) of classification and labeling.
Who must comply
All employers whose employees may be exposed to hazardous chemicals in the workplace. The standard applies broadly — almost every workplace has at least cleaning supplies, fuels, lubricants, paints, or process chemicals that qualify. Partial exemptions exist for consumer products used as consumers, food/drug/cosmetic products, hazardous waste under RCRA, and a few other narrow categories.
What happens if violated
HazCom is OSHA's #2 most-cited standard annually. Serious violation penalties: up to $16,131. Repeat or willful: up to $161,323. Common violation categories: missing written plan (~$3,000 typical), missing SDS for inventory chemicals (~$3,000 per chemical), inadequate training (~$5,000 typical), unlabeled secondary containers (~$2,000 per container).
Implementation checklist
- Develop a written HazCom program covering all chemicals in the workplace.
- Maintain a chemical inventory (current list of all hazardous chemicals).
- Obtain SDS for every hazardous chemical in inventory.
- Make SDS accessible to all employees during all work shifts (electronic systems acceptable).
- Label every container — both original and secondary — with GHS-compliant pictograms, signal word, hazards.
- Train new employees BEFORE exposure to hazardous chemicals.
- Train current employees when a new chemical hazard is introduced.
- Document training (employee name, date, content covered).
- Update written plan when chemicals are added or removed from inventory.
- Coordinate with multi-employer worksites (contractors, vendors) so all workers can access SDS.
Common misinterpretations
- Misinterpretation: 'We have a binder of SDS — we're compliant.' Reality: SDS must be ACCESSIBLE during all work shifts. A binder in the safety manager's office that's locked at night doesn't meet the access standard. Many employers use cloud-based SDS systems accessible from any device.
- Misinterpretation: 'Manufacturer labels are enough.' Reality: 29 CFR 1910.1200(f)(6) requires labels on ALL containers, including SECONDARY CONTAINERS (when chemical is transferred from the original container into a spray bottle, dispenser, etc.). Secondary containers must have the chemical name, hazards, and signal word/pictogram.
- Misinterpretation: 'Annual refresher training covers it.' Reality: Initial training is required AT HIRE (before any hazardous chemical exposure). Refresher training is required when a NEW chemical hazard is introduced — not just annually. A workplace adding a new product must train workers on that product before they're exposed.
- Misinterpretation: 'Our distributor is responsible for the SDS.' Reality: The EMPLOYER is responsible for maintaining the SDS in the workplace. Distributors must provide an SDS for products they ship; the receiving employer must obtain, maintain, and make accessible.
Frequently asked questions
What is the HazCom Standard?
29 CFR 1910.1200 — OSHA's standard requiring employers to inform and train employees about hazardous chemicals in the workplace. Includes written plan, chemical inventory, SDS, GHS-compliant labels, and training. Often called 'right to know.'
Do I need an SDS for every chemical?
For every HAZARDOUS chemical, yes. Non-hazardous office supplies (paper, ink for typical office printers) don't require SDS. But the threshold is low — most cleaning products, fuels, lubricants, paints, and industrial chemicals do.
How accessible must SDS be?
Accessible during ALL work shifts to employees in their work area. Electronic SDS systems are fully acceptable if every worker has access to the system. Paper binders work but must be near the work area and available 24/7. Locked or remote storage fails the access requirement.
What's a 'secondary container'?
Any container the chemical is transferred to from the original manufacturer container. Examples: spray bottles filled from a bulk drum, dispensers, smaller squeeze bottles. Secondary containers must be labeled with chemical name, hazards, and signal word/pictogram per 29 CFR 1910.1200(f)(6).
When must employees be trained?
INITIAL training before exposure to any hazardous chemical. NEW-PRODUCT training when a new chemical hazard is introduced. The standard does NOT specifically require annual refresher, but most employers do annual training as best practice.
What goes in the written HazCom plan?
(1) Identity and location of the workplace's hazardous chemicals inventory. (2) Methods used to inform employees (training, SDS access). (3) Procedures for non-routine tasks (e.g., tank cleanings, confined space entries). (4) Multi-employer coordination procedures. The plan is a written DOCUMENT, not just verbal practices.
What's GHS and why does it matter?
Globally Harmonized System of Classification and Labeling of Chemicals — the UN-developed standard for classifying chemical hazards and presenting them on labels and SDS. OSHA aligned 29 CFR 1910.1200 with GHS in 2012 and updates periodically. GHS uses specific pictograms (e.g., flame, skull-and-crossbones), signal words (DANGER, WARNING), and hazard statements.
Cross-references: 29 CFR 1910.132 · 29 CFR 1910.134 · 29 CFR 1910.1450
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