40 Hours$249.99
OSHA 40 Hour HAZWOPER Training
29 CFR 1910.120(e) / 1926.65(e)
Free HAZWOPER learning center
Learn HAZWOPER: Free Lessons, Practice Quizzes and Certified Online Courses
Build real hazmat knowledge before, during and after your HAZWOPER course. Read plain-English lessons, test yourself with free quizzes, then earn your certificate online when you are ready.
- Free lessons, no sign-up
- Practice quizzes with explanations
- Certificates when you need them
- English and Spanish courses
Your HAZWOPER learning path
- 1
Learn the basics
Start with how to read a safety data sheet and toxicology basics. They explain why every other safety rule exists.
- 2
Practice
Take the free quizzes, starting with the SDS and GHS quiz. Every answer comes with an explanation.
- 3
Get certified
Enroll in the 40 hour HAZWOPER course ($249.99) or the level your job needs, and use our exam study guide.
- 4
Stay current
Come back each year for the 8 hour refresher ($89.99) and keep your skills sharp with new lessons.
Certified Online HAZWOPER Courses
No courses match that search. Call +1-866-429-6742 and we will point you to the right training.
Foundation Courses: 40, 24 & 4 Hour
Start here. These courses set the base level of HAZWOPER knowledge for site workers and first responders.
24 Hours$169.99
OSHA 24 Hour HAZWOPER Training
29 CFR 1910.120(e)
4 Hours$61.99
OSHA 4-Hour HAZWOPER First Responder Awareness Level Training
29 CFR 1910.120(q)(6)(i)
40 Hours$249.99
OSHA 40-Hour HAZWOPER Training (Spanish)
29 CFR 1910.120(e)(3)(i) - Spanish language
Industry 40-Hour Programs
The complete 40-hour course taught through the hazards of one industry.
40 Hours$249.99
OSHA 40 Hour HAZWOPER for Construction (Contaminated Sites)
29 CFR 1910.120(e) / 1926.65(e)
40 Hours$249.99
OSHA 40 Hour HAZWOPER for Emergency Response/Fire-Hazmat Teams
29 CFR 1910.120(e) / 1926.65(e)
40 Hours$249.99
OSHA 40 Hour HAZWOPER for Environmental Remediation
29 CFR 1910.120(e) / 1926.65(e)
40 Hours$249.99
OSHA 40 Hour HAZWOPER for Utility/Pipeline Emergency Response
29 CFR 1910.120(e) / 1926.65(e)
Stay Current: Refreshers, Supervisor & Incident Command
The yearly refresher plus leadership courses for supervisors and incident commanders.
8 Hours$89.99
OSHA 8 Hour HAZWOPER Refresher Training
29 CFR 1910.120(e)(8)
8 Hours$159.99
8 Hour HAZWOPER and Incident Command Refresher Training
29 CFR 1910.120(q)(8)
8 Hours$149.99
Manufacturing Emergency Response Team (ERT) Training
29 CFR 1910.120(q)
8 Hours$179.99
OSHA 8 Hour HAZWOPER (q) Incident Command Training
29 CFR 1910.120(q)
8 Hours$149.99
OSHA 8 Hour HAZWOPER Supervisor Refresher Training
29 CFR 1910.120(e)(4)/(e)(8)
8 Hours$179.99
OSHA 8 Hour HAZWOPER Supervisor Training
29 CFR 1910.120(e)(4)
8 Hours$109.99
OSHA 8-Hour HAZWOPER and Safe Ammonia Handling Refresher Training
29 CFR 1910.120(e)(8) / 1910.111
California & State-Plan Programs
Versions written for workers in states that run their own OSHA programs.
40 Hours$219.99
Cal/OSHA 40-Hour HAZWOPER Training (2026)
8 CCR 5192(e)
24 Hours$249.99
Cal/OSHA 24 hour HAZWOPER TSDF RCRA Training
8 CCR 5192(p) / RCRA
24 Hours$169.99
Cal/OSHA 24-Hour HAZWOPER Training
8 CCR 5192(e)
8 Hours$84.99
8 Hour HAZWOPER Refresher - State-Plan Versions Available
State-plan equivalents of federal OSHA standard (see parent course)
8 Hours$89.99
Cal/OSHA 8-Hour HAZWOPER Refresher Training
8 CCR 5192(e)(8)
8 Hours$109.99
Cal/OSHA 8-hour HAZWOPER TSDF RCRA Refresher Training
8 CCR 5192(p)(8) / RCRA
4 Hours$49.99
Cal/OSHA RCRA Hazardous Waste Training
22 CCR Div. 4.5 / 40 CFR 262.17 / 8 CCR 5192
Hazardous Waste (RCRA) Courses
For the people who generate, store, ship and track hazardous waste.
24 Hours$229.99
OSHA 24-Hour HAZWOPER - RCRA TSD Operations Training
29 CFR 1910.120(p) / RCRA
24 Hours$199.99
OSHA HAZWOPER and RCRA Hazardous Waste Management Technician Safety Training
29 CFR 1910.120 / RCRA
8 Hours$149.99
EPA RCRA/DOT Combined Hazardous Materials Compliance Training
RCRA + 49 CFR 172
8 Hours$99.99
OSHA 8 Hour HAZWOPER Annual Refresher - RCRA TSD Operations Training
29 CFR 1910.120(p)(8) / RCRA
8 Hours$89.99
RCRA Hazardous Waste Generator Training
40 CFR 262.17 (RCRA)
4 Hours$99.99
Hazardous Waste Contingency Plan and Emergency Coordinator Training
40 CFR Parts 262 and 264/265
4 Hours$59.99
RCRA Hazardous Waste Generator Refresher Training
40 CFR 262.17 (RCRA, annual)
2 Hours$34.99
Hazardous Waste Manifest Training
40 CFR 262 Subpart B (RCRA)
2 Hours$59.99
Hazardous Waste Satellite Accumulation Area Training
40 CFR 262.15
2 Hours$34.99
RCRA Universal Waste Handler Training
40 CFR 273 (RCRA)
Short Courses: Spills, Monitoring & PPE
Focused modules for building one skill at a time.
40 Hours$249.99
OSHA 40 Hour HAZWOPER for Oil & Gas Spill Response
29 CFR 1910.120(e) / 1926.65(e)
2 Hours$49.99
OSHA Air Monitoring and Gas Detection Training
29 CFR 1910.120 / 1910.146 / 1910.1000
2 Hours$49.99
OSHA Spill Prevention and Response Safety Training
29 CFR 1910.120 / 40 CFR 112
1 Hour$24.99
Spill Response Equipment - Absorbent & Containment Booms
40 CFR 112 / 29 CFR 1910.120
1 Hour$24.99
Spill Response Equipment - Spill Kit Selection & Use
40 CFR 112 / 29 CFR 1910.120
20 Min$14.99
HAZWOPER Micro-Module: Air Monitoring & Direct-Reading Instruments
29 CFR 1910.120(e) / 1926.65(e)
20 Min$14.99
HAZWOPER Micro-Module: Decontamination Procedures
29 CFR 1910.120(e) / 1926.65(e)
20 Min$14.99
HAZWOPER Micro-Module: Site Characterization & Hazard Assessment
29 CFR 1910.120(e) / 1926.65(e)
15 Min$12.99
HAZWOPER Micro-Module: PPE Levels A, B, C & D Explained
29 CFR 1910.120(e) / 1926.65(e)
Teach HAZWOPER
For experienced workers ready to train others.
24 Hours$399.99
HAZWOPER Train-the-Trainer Certification
29 CFR 1910.120(e)
Free lessons
Original lessons on the hazmat skills that HAZWOPER courses build on.
Lesson3 min read
How to Read a Safety Data Sheet (SDS): All 16 Sections Explained
A section-by-section lesson on reading a GHS safety data sheet: hazard identification, pictograms, signal words, first aid, PPE, exposure limits, stability and spill response.
Lesson2 min read
How to Use the DOT Emergency Response Guidebook (ERG)
Lesson on the DOT Emergency Response Guidebook: the yellow, blue, orange and green sections, UN/NA numbers, placards, highlighted materials and isolation distances.
Lesson2 min read
Toxicology Basics for Hazmat Workers: Dose, Routes and Health Effects
Plain-English toxicology for hazardous waste and hazmat workers: dose-response, LD50 and LC50, local and systemic effects, target organs, carcinogens, sensitizers and synergy.
Lesson2 min read
Respirator Selection and Fit Testing for HAZWOPER Work
How to choose a respirator under OSHA 1910.134: assigned protection factors, maximum use concentration, cartridges and filters, fit testing, seal checks and change schedules.
Lesson3 min read
Heat Stress in Chemical Protective Clothing: Signs, Prevention and Monitoring
Why chemical protective clothing causes heat stress, the signs of heat exhaustion and heat stroke, work-rest cycles, hydration, acclimatization and physiological monitoring.
Lesson2 min read
Drum and Container Handling at Hazardous Waste Sites
How HAZWOPER 1910.120(j) governs handling drums and containers: inspection, unlabeled drums, bulging and leaking drums, overpacks, opening, sampling, staging and buried drums.
Lesson2 min read
Confined Spaces at Hazardous Waste Sites: Permits, Roles and Rescue
Permit-required confined spaces under OSHA 1910.146 and 1926 Subpart AA on hazardous waste sites: definitions, atmospheric testing order, entrant, attendant and supervisor roles, and rescue.
Lesson2 min read
Hazardous Chemical Spill Response: Step by Step
Step-by-step hazardous chemical spill response: incidental vs emergency releases, protecting yourself, isolating the area, identifying the material, containment, spill kits and reporting to the National Response Center.
Lesson2 min read
HAZWOPER Jobs and Careers: Who Hires, What You Need and How to Start
Careers that require HAZWOPER training: environmental technicians, remediation crews, emergency spill responders, TSDF operators, industrial cleaning and field scientists, plus how to get started.
Lesson2 min read
How to Study for the HAZWOPER Final Exam (With the Key Numbers to Know)
A study plan for the HAZWOPER final exam: how to pace a self-paced course, active recall, practice quizzes, and a table of the key numbers every HAZWOPER student should know.
Practice quizzes
Short quizzes that score instantly and explain every answer.
Free quiz8 questions
Safety Data Sheet (SDS) and GHS Label Quiz
Free safety data sheet quiz with answers: the 16 SDS sections, GHS pictograms, signal words, where to find PPE, exposure limits, flash point and first aid.
Free quiz8 questions
DOT Emergency Response Guidebook (ERG) Quiz
Free Emergency Response Guidebook quiz with answers: yellow, blue, orange and green pages, highlighted materials, guide numbers, hazard classes and first actions at a hazmat incident.
Free quiz8 questions
Toxicology Basics Quiz for Hazmat Workers
Free toxicology quiz with answers: dose-response, LD50, routes of entry, local vs systemic effects, target organs, sensitizers, asphyxiants and synergistic effects.
Free quiz8 questions
Respirator Selection and Fit Testing Quiz
Free respirator quiz with answers: assigned protection factors, maximum use concentration, APR vs SCBA, cartridge colors, fit testing frequency and user seal checks under OSHA 1910.134.
Free quiz8 questions
Heat Stress in Protective Clothing Quiz
Free heat stress quiz with answers: heat exhaustion vs heat stroke, first aid, acclimatization, hydration, work-rest cycles and heart-rate and temperature monitoring in chemical protective clothing.
Free quiz8 questions
Hazmat Field Safety Quiz: Drums, Confined Spaces and Spills
Free hazmat field safety quiz with answers: drum handling under 1910.120(j), permit-required confined spaces, atmospheric testing order, incidental vs emergency spills and reporting.
About the learning center
HazwoperOSHA.org is for anyone learning to work safely around hazardous materials: new environmental technicians, emergency responders, students, and experienced workers brushing up before a refresher.
Our lessons summarize the OSHA, EPA and DOT rules and the NIOSH guidance that shape hazmat work, in plain English. They're written for training and review, so always follow your site safety and health plan and the current regulation text.
When you need a certificate
- Self-paced courses that meet OSHA 29 CFR 1910.120 training requirements
- Certificate and wallet card as soon as you pass
- Federal OSHA, Cal/OSHA and state-plan versions
- 40-hour course available in Spanish
Learning Center FAQ
Are the lessons and quizzes on HazwoperOSHA.org free?
Yes. Every lesson and practice quiz on this site is free to read and take, with no account or sign-up.
Do the free lessons count as OSHA HAZWOPER training?
No. The lessons help you learn and review, but OSHA training requirements are met by completing a full course with a final exam and certificate, plus any supervised field experience your level requires.
Where should a beginner start?
Start with the lessons on reading a safety data sheet and toxicology basics, take the matching quizzes, then enroll in the 40 hour HAZWOPER course if you will work on cleanup sites.
What are the lessons based on?
They summarize OSHA standards (including 29 CFR 1910.120, 1910.134, 1910.146 and 1910.1200), EPA and DOT rules, the DOT Emergency Response Guidebook and NIOSH guidance. They are written for training purposes and are not legal advice.
Can supervisors and trainers use these lessons with a crew?
Yes. Link your crew to any lesson or quiz for a toolbox talk or pre-course review.
How should I prepare for the final exam?
Study in focused blocks, take notes per module and test yourself with the practice quizzes. The lesson on studying for the HAZWOPER exam includes a table of the key numbers to know.
What do I get when I finish a certificate course?
A printable certificate of completion and a wallet card, available as soon as you pass the final exam.
Are courses available in Spanish?
Yes. The OSHA 40-Hour HAZWOPER course has a full Spanish-language version. Questions? Call +1-866-429-6742 or email sales@hazwoper-osha.com.