HazCom & GHS Fundamentals
The written program, GHS labels, the eight pictograms and all sixteen sections of a safety data sheet — free and self-paced
Hazard Communication was the second most frequently cited OSHA standard in fiscal year 2025, behind only fall protection. That is not because chemicals are exotic — it is because almost every workplace has them, almost every workplace is covered, and the standard asks for four things at once: a written program, labels, safety data sheets and training. There are four ways to come up short. This free, self-paced course works through all four, in the order they actually get used. Part 1 covers who classifies a chemical, what the written program must contain and when training is triggered. Part 2 takes apart a GHS label element by element, including the eight hazard symbols of mandatory Appendix C and the precedence rules that decide which pictogram appears. Part 3 walks all sixteen sections of a safety data sheet, including the four OSHA states it will not enforce. Part 4 is the floor: secondary containers, storage and segregation, the line between an incidental release and an emergency response, and the way silica, lead and asbestos all plug into this one program. Every figure and every rule is quoted from the paragraph it comes from, with a link so you can read it yourself.
What you will be able to do
- Say who classifies a chemical, and why an employer may rely on that classification
- Write the three required elements of a hazard communication program, including the two most often missing
- Read a GHS label element by element and explain what each one adds
- Recognize the eight hazard symbols and apply the four precedence rules of Appendix C
- Find any of the sixteen safety data sheet sections by number, and say which four OSHA does not enforce
- Turn a safety data sheet into a glove, ventilation and storage decision — and know where the sheet stops
- Label a secondary container correctly, and state exactly when the immediate-use exception applies
- Decide whether a spill is an incidental release or an emergency response, using the definition that governs
Course outline
The right to know and the written program
What the standard is trying to do and who it covers, who classifies a chemical and against what criteria, the three elements of the written program, and the two triggers that require training.
Labels, pictograms and hazard statements
The six elements of a shipped label, how a pictogram is built and why there are eight symbols, the two signal words and the four types of precautionary statement, and the labels you apply yourself.
The safety data sheet and its sixteen sections
How sheets arrive and what readily accessible actually means, the eight working sections, the eight back sections including the four OSHA does not enforce, and turning a sheet into a decision.
On the floor: containers, storage and spills
Secondary containers and the immediate-use exception, storage and segregation from sections 7, 9 and 10, the incidental release line, and the elements of the program that reach non-routine tasks, pipes and other employers.
Who it's for: Anyone who handles chemicals at work — construction trades, manufacturing and warehouse crews, maintenance, janitorial and facilities staff — plus foremen, supervisors and anyone who has to write or maintain a hazard communication program.
Frequently asked questions
Sources & references
- 29 CFR 1910.1200 — Hazard Communication
- 29 CFR 1910.1200 Appendix C — Allocation of Label Elements (mandatory)
- 29 CFR 1910.1200 Appendix D — Safety Data Sheets (mandatory)
- 29 CFR 1926.59 — Hazard communication in construction
- 29 CFR 1910.1020 — Access to employee exposure and medical records
- 29 CFR 1910.120 — Hazardous waste operations and emergency response (HAZWOPER)
- 29 CFR 1910.38 — Emergency action plans
- 29 CFR 1910.132 — Personal protective equipment, general requirements
- 29 CFR 1910.134 — Respiratory protection
- 29 CFR 1926.55 — Gases, vapors, fumes, dusts, and mists (construction exposure limits)
- 29 CFR 1910.106 — Flammable liquids
- 29 CFR 1926.152 — Flammable liquids (construction)
- 29 CFR 1926.153 — Liquefied petroleum gas (LP-Gas)
- 29 CFR 1926.1153 — Respirable crystalline silica (construction)
- 29 CFR 1926.62 — Lead in construction
- 29 CFR 1926.1101 — Asbestos in construction
- OSHA — Hazard Communication safety and health topics page
- OSHA — Top 10 Most Frequently Cited Standards, fiscal year 2025
- OSHA Accident Search — public accident abstracts cited by Summary Nr
Content checked against these sources — last reviewed August 29, 2026.
Not OSHA-authorized training. SteelToeTools is not affiliated with, endorsed by, or authorized by OSHA or the U.S. Department of Labor. This free educational content does not satisfy any OSHA or other regulatory training requirement, and no card, certificate, or credential is issued. Only OSHA-authorized trainers can deliver OSHA Outreach Training (10-Hour and 30-Hour) and issue DOL cards. Always follow your employer's training program and applicable federal, state, and local requirements.