What is 24-hour HAZWOPER training?

This OSHA-required course under 29 CFR 1910.120 serves workers with limited exposure to hazardous substances at hazardous waste sites who participate in cleanup, work at treatment/storage/disposal facilities, or assist in controlled emergency response situations.

What is the difference between 24-hour and 40-hour HAZWOPER?

The 40-hour version targets general site workers with full hazard exposure and requires 3 days of supervised field experience, while the 24-hour course is for workers with limited or occasional exposure and requires 1 day (8 hours) of field experience.

Who needs 24-hour HAZWOPER training?

Required for workers at cleanup sites with limited exposure, support staff at TSD facilities, controlled emergency response workers, occasional site visitors, and employees designated by their employer based on job duties.

How long does 24-hour HAZWOPER take to complete?

The course requires a minimum of 24 instructional hours, with most students completing it over 1–2 weeks at their own pace before completing employer-provided field experience.

Is online 24-hour HAZWOPER training OSHA-compliant?

Yes, the course meets OSHA 29 CFR 1910.120 knowledge requirements; employers must provide the mandated 1 day of supervised field experience separately.

What is the NIOSH Pocket Guide?

The guide is a reference guide published by the National Institute for Occupational Safety and Health (NIOSH) covering chemical identification, exposure limits, health hazards, and PPE recommendations for over 670 chemicals.

Can I upgrade from 24-hour to 40-hour HAZWOPER?

No. If job duties change, you must complete the full 40-Hour HAZWOPER course since the 24-hour course cannot be simply upgraded.

OSHA 24 Hour Hazwoper Training

Q: Does 24-hour HAZWOPER certification expire?

Yes. Annual 8-hour refresher training is required. If your certification lapses (more than 12 months without a refresher), you must retake the full 24-hour course.

Q: What hands-on training is required for 24-hour HAZWOPER?

Employers must provide 1 day (8 hours) of supervised field experience under the direct supervision of a trained, experienced supervisor.

Q: How do I prove I have completed HAZWOPER training?

Upon passing, you receive a personalized certificate of completion that includes your name, course name, completion date, and certificate number.

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Course Information

Everything You Need to Know
About This Course

Course Details at a Glance

Key facts before you enroll.

Who Should Take This Course?

Find out if this training applies to you.

Industries That Require This Training

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What's Included

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Course Overview

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5-minute preview of Module 1 — 24 Hour Hazwoper Online Course
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What You Get When You Enroll

Everything included with your 24 Hour Hazwoper Online Course training.

✓Instant certificate of completionPrintable PDF, ready immediately after passing
✓Mobile-friendly platformTrain on desktop, tablet, or smartphone
✓Progress saved automaticallyStop and restart without losing your place
✓30-day satisfaction guaranteeFull refund if you're not satisfied

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Course Details at a Glance

Everything you need to know before enrolling in the 24 Hour Hazwoper Online Course.

Detail

Information

OSHA Standard

OSHA 29 CFR 1910.120

Course Duration

24 hours

Format

100% online, fully narrated with interactivity

Passing Score

70% on final exam

Certificate

Personalized certificate printable immediately upon passing

Device Compatibility

Desktop, tablet, and smartphone

Accepted

Our courses meet federal standards, but state requirements may vary. Please verify before purchase.

Price Match

eTraining will beat any competitor's price + $10

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Who Should Take the 24 Hour Hazwoper Online Course?

Find out if this training applies to your role, your job site, or your employer's compliance requirements, and whether it matches the certification you need.

✓Workers with limited exposure at hazardous waste cleanup sites
✓Support personnel at hazardous waste TSD facilities
✓Occasional site visitors to hazardous waste operations
✓Emergency response workers in controlled response roles
✓Environmental technicians in support capacities
✓Government agency inspectors (EPA
✓state environmental agencies)
✓Utility workers with potential hazardous substance exposure
✓Transportation workers handling hazardous materials
✓Workers who do not need full 40-hour HAZWOPER training
✓Construction workers on brownfield or contaminated sites

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Industries That Require 24 Hour Hazwoper Online Course

Employers across a wide range of industries use this course to meet federal, state, and site-specific safety training requirements for their workforce.

✓Environmental remediation and cleanup
✓Hazardous waste treatment, storage, and disposal (TSD) facilities
✓Chemical manufacturing and distribution
✓Oil and gas operations
✓Government agencies (EPA, DOE, military installations)
✓Utility companies (gas, electric, water)
✓Transportation of hazardous materials
✓Construction on brownfield or contaminated sites
✓Emergency response organizations (controlled response)
✓Mining and mineral processing

Enroll Now — $149.00

Why eTraining

Better Training.
Better Outcomes.

Over 50,000 workers trained. Here's what makes us the trusted choice for OSHA compliance.

OSHA Citation Printed on Every Certificate

Every certificate shows OSHA citation — so your employer and site safety officer can verify compliance at a glance.

No Setup. No LMS. Train in Minutes.

Pay once, get instant access — no account setup, no app downloads, no IT required. Works on any browser.

Built for Field Workers, Not Classrooms

Content is grounded in real hazardous waste site operations — not recycled classroom slides. Scenarios reflect the work your crew actually does.

Trusted by Safety Managers & Contractors

Used by EHS managers, general contractors, and federal site supervisors to keep crews certified on time, every year.

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Frequently Asked Questions

Everything you need to know about the 24 Hour Hazwoper Online Course.

24-hour HAZWOPER training is an OSHA-required course under 29 CFR 1910.120 for workers who have limited exposure to hazardous substances at hazardous waste sites but still participate in cleanup operations, work at treatment/storage/disposal (TSD) facilities, or assist in controlled emergency response situations. The 24-hour course covers environmental laws, OSHA regulations, site hazard identification, fall protection, electrical safety, confined spaces, personal protective equipment, and the NIOSH Pocket Guide to Chemical Hazards.

The 40-hour HAZWOPER course is required for general site workers who are directly involved with hazardous substance handling and have full exposure to site hazards. The 24-hour course is for workers with limited or occasional exposure who perform support roles. Both are governed by OSHA 29 CFR 1910.120. The 40-hour course requires 3 days of supervised field experience; the 24-hour course requires 1 day (8 hours). Both require annual 8-hour refresher training to maintain certification.

24-hour HAZWOPER training is required for: workers at hazardous waste cleanup sites who have limited exposure to hazardous substances, workers at TSD facilities in support roles, workers involved in controlled emergency response operations, occasional site visitors to hazardous waste operations, and any employee designated by their employer as needing 24-hour level training based on their job duties and exposure levels.

eTraining’s 24-Hour HAZWOPER course requires a minimum of 24 hours of instruction. The course is self-paced, so most students complete it over 1–2 weeks. You can pause and resume at any time on the same device. After completing the online portion, your employer must provide 1 day (8 hours) of supervised field experience.

Yes. HAZWOPER certification requires annual renewal through an 8-hour refresher course. If your certification lapses (more than 12 months without a refresher), you must retake the full 24-hour course to recertify. eTraining offers the 8-Hour HAZWOPER Refresher course, updated annually to reflect the latest regulatory changes.

Yes. eTraining’s 24-Hour HAZWOPER course covers all knowledge-based training requirements under OSHA 29 CFR 1910.120. OSHA also requires employers to provide 1 day (8 hours) of supervised field experience after completing the online training portion. The combination of online education plus employer-provided field experience meets OSHA’s requirements.

The NIOSH Pocket Guide to Chemical Hazards is a reference guide published by the National Institute for Occupational Safety and Health (NIOSH) that provides key chemical identification data, exposure limits, health hazards, and recommendations for personal protection for over 670 chemicals. eTraining’s 24-Hour HAZWOPER course includes an entire unit dedicated to understanding and using the NIOSH Pocket Guide, including reading exposure limits, vapor pressures, flammability data, and PPE selection.

After completing the 24-hour online course, your employer must provide 1 day (8 hours) of supervised field experience under the direct supervision of a trained, experienced supervisor. This field training covers hands-on use of PPE, decontamination procedures, and site-specific hazard recognition. The online course provides the knowledge base; the field experience provides practical application.

If your job duties change and you need full 40-hour HAZWOPER certification, you will need to complete the full 40-Hour HAZWOPER course. The 24-hour course cannot simply be “upgraded” with additional hours because the 40-hour course covers more extensive content including additional days of supervised field experience (3 days vs. 1 day). eTraining offers the 40-Hour HAZWOPER course separately.

Upon passing eTraining’s 24-Hour HAZWOPER course, you receive a personalized certificate of completion that includes your name, course name, completion date, and certificate number. OSHA 29 CFR 1910.120(e)(6) requires a written certificate be given to each person who completes HAZWOPER training. Your employer can verify your certificate through eTraining’s verification system.