Choose Your HAZWOPER Training Course
Explore our 40-hour and 24-hour initial HAZWOPER training courses and annual 8-hour refresher. All three courses offer flexible, self-paced online instruction with a certificate of completion.
40-Hour HAZWOPER Online Training
Initial training for general hazardous waste site workers who may be exposed to hazardous substances during cleanup, remediation, and related operations.
- Hazard recognition and site safety
- Personal protective equipment (PPE)
- Decontamination and emergency procedures
24-Hour HAZWOPER Online Training
Initial training for qualifying workers who perform limited tasks or have restricted exposure potential at hazardous waste sites.
- Hazard awareness and exposure recognition
- Protective measures and safe work practices
- Site safety and emergency procedures
8-Hour HAZWOPER Refresher Training
Annual refresher training for workers who have previously completed applicable initial HAZWOPER training and need to refresh their safety knowledge.
- Annual review of HAZWOPER safety practices
- Hazard controls and protective equipment
- Emergency response and decontamination
Which HAZWOPER Course Do I Need?
Not sure whether you need 40-hour, 24-hour, or 8-hour HAZWOPER training? The right course depends on your previous training, job duties, and potential exposure to hazardous substances. Use this guide to narrow your choice.
Need Your Annual HAZWOPER Refresher?
If you previously completed applicable 40-hour or 24-hour HAZWOPER training and are due for your annual renewal, the 8-Hour HAZWOPER Refresher is generally the appropriate course. It reviews important safety practices, hazard controls, and emergency procedures.
Compare 40-Hour vs. 24-Hour HAZWOPER
If you are new to HAZWOPER training, the difference comes down to your assigned work and the conditions at the hazardous waste site.
40-Hour HAZWOPER Training
Generally required for workers involved in hazardous substance removal or other activities with actual or potential exposure to hazardous substances and health hazards.
- Hazardous waste cleanup and environmental remediation operations.
- General site labor and equipment operation involving potential hazardous substance exposure.
- Work where assigned duties and exposure conditions require the more extensive initial training.
24-Hour HAZWOPER Training
Intended for eligible workers performing limited tasks or working under specifically characterized site conditions that meet OSHA's 24-hour training criteria.
- Occasional, limited site tasks such as groundwater monitoring or land surveying, where exposures are unlikely to exceed applicable limits.
- Regular work in fully characterized areas meeting OSHA's lower-exposure conditions, including no respirator requirement.
- Assignments where the employer's site evaluation confirms eligibility for the 24-hour training level.
Confirm the required training level with your employer or site safety manager. Your actual duties, potential exposure, and site conditions determine whether 40-hour or 24-hour initial training is appropriate. Supervisory and emergency-response roles may involve additional or different requirements.
For initial site-worker training, OSHA also requires applicable practical instruction and supervised field experience in addition to online coursework. See OSHA 29 CFR 1910.120(e) for the detailed requirements.
What Is HAZWOPER Training?
HAZWOPER training helps protect workers involved in hazardous waste operations and emergency response activities. It addresses the hazards, safety procedures, and protective measures associated with working around hazardous substances.
What Does HAZWOPER Mean?
HAZWOPER stands for Hazardous Waste Operations and Emergency Response. It refers to OSHA safety standards established to protect employees who may be exposed to hazardous substances during covered waste operations, cleanup activities, and emergency response.
These requirements are particularly relevant to environmental remediation, hazardous waste site cleanup, contaminated-site construction work, and certain hazardous waste facility and emergency response operations.
What Does HAZWOPER Training Cover?Recognizing chemical, physical, and other jobsite hazards and understanding potential exposure pathways.
Understanding personal protective equipment, exposure controls, site safety procedures, and decontamination practices.
Learning relevant emergency procedures, communication, evacuation, and incident response principles.
Which Operations Does OSHA HAZWOPER Cover?
OSHA identifies five categories of operations covered by its HAZWOPER standards, subject to the standards' exposure and applicability provisions.
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Government-Directed Hazardous Waste Cleanup
Cleanup operations required by governmental authorities at uncontrolled hazardous waste sites.
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RCRA Corrective Action Cleanup
Corrective actions involving cleanup operations at sites covered by the Resource Conservation and Recovery Act (RCRA).
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Recognized Voluntary Hazardous Waste Cleanup
Voluntary cleanup at sites recognized by government authorities as uncontrolled hazardous waste sites.
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Regulated Hazardous Waste Facilities
Applicable operations at RCRA-regulated hazardous waste treatment, storage, and disposal (TSD) facilities.
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Hazardous Substance Emergency Response
Emergency response to releases or substantial threats of releases of hazardous substances, regardless of location.
HAZWOPER for Construction and Environmental Remediation
HAZWOPER is particularly relevant when construction and environmental contractors perform work at covered hazardous waste sites. OSHA's construction HAZWOPER standard, 29 CFR 1926.65, addresses hazardous waste operations and emergency response in construction.
Training requirements depend on the actual work, site conditions, and potential exposure to hazardous substances—not simply a worker's job title or the presence of construction equipment.
- Hazardous waste site excavation and remediation activities
- Removal and handling of contaminated soil at covered cleanup sites
- Environmental site investigation and sampling activities
- Construction and demolition operations associated with qualifying hazardous waste cleanup
How Online HAZWOPER Training Works
Complete your HAZWOPER online coursework through PDH STAR in four straightforward steps. Our self-paced courses let you study around your work schedule and receive a certificate after successful completion.
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Select Your HAZWOPER Course
Choose the 40-hour or 24-hour initial training course, or the annual 8-hour HAZWOPER refresher. Enroll online to get started.
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Complete Self-Paced Online Lessons
Work through the course materials and learning activities at your own pace, following the training curriculum for your selected course.
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Complete the Course Assessment
Demonstrate your understanding of the course content by completing the required knowledge checks and assessment.
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Receive Your Completion Certificate
After successfully completing the course, access your certificate of completion documenting your online HAZWOPER coursework.
Why Choose PDH STAR for HAZWOPER Training?
Hazardous waste operations demand a clear understanding of workplace hazards and safety procedures. PDH STAR makes it easier to access the online HAZWOPER training you need, without a fixed classroom schedule.
Whether you're taking your first HAZWOPER course, completing an annual refresher, or arranging training for employees, we offer straightforward enrollment, competitive pricing, and support throughout the process.
Focused on HAZWOPER Safety
Training content addresses OSHA HAZWOPER topics such as hazardous substance recognition, personal protective equipment, decontamination, and site safety procedures.
Flexible Online Learning
Study on your own schedule with self-paced lessons, course progress tracking, and knowledge checks designed to reinforce the material.
Clear Pricing & Certificates
Compare course prices before enrolling and receive a downloadable certificate after successful completion. Optional wallet-size training cards are available for eligible courses.
Support When You Need It
Get assistance with course enrollment, training questions, certificates, and group training arrangements from the PDH STAR team.
Need HAZWOPER Training for Your Team?
PDH STAR supports contractors, environmental service providers, and employers training multiple workers. Ask about group pricing, centralized purchasing, employee enrollment, and options for managing training records and annual refresher requirements.
HAZWOPER Training FAQs
Find answers to common questions about online HAZWOPER training, OSHA requirements, course certificates, annual refreshers, and hazardous waste site safety.
Can I complete HAZWOPER training online?
Yes. Online HAZWOPER courses can provide the instructional component of an OSHA HAZWOPER training program.
However, online coursework alone does not satisfy all HAZWOPER training requirements. Applicable hands-on instruction, opportunities to ask a qualified trainer questions, and assessments of practical skills must also be addressed.
PDH STAR offers self-paced 40-hour and 24-hour initial HAZWOPER coursework, as well as an 8-hour annual refresher. Employers remain responsible for ensuring the overall training program meets applicable OSHA requirements.
Is hands-on or on-the-job HAZWOPER training required?
Yes. Initial HAZWOPER training for covered hazardous waste site workers includes actual hands-on instruction, such as using personal protective equipment, and supervised field experience.
Workers in the general 40-hour initial training category require at least 3 days of supervised field experience. Qualifying 24-hour workers require at least 1 day.
Hands-on skills instruction must be completed before supervised field experience. Employers and qualified trainers must arrange and document the applicable requirements.
What is the difference between 40-hour and 24-hour HAZWOPER?
40-hour HAZWOPER generally applies to workers involved in hazardous waste operations with actual or potential exposure to hazardous substances and related health hazards.
24-hour HAZWOPER applies to qualifying workers performing limited tasks or working under specific lower-exposure conditions identified by OSHA.
The correct requirement depends on job duties, exposure potential, and site conditions. Review our HAZWOPER course selection guide for a detailed comparison.
How often is 8-hour HAZWOPER refresher training required?
Workers and supervisors covered by OSHA's hazardous waste site training requirements under 29 CFR 1910.120(e) generally must complete 8 hours of refresher training annually.
Refresher training helps workers maintain awareness of hazards, safe work practices, protective equipment, and relevant operating procedures.
If you're due for your annual refresher, see PDH STAR's 8-Hour HAZWOPER Refresher Course .
What happens if my HAZWOPER refresher is overdue?
Missing an annual refresher does not automatically mean you must repeat the complete 24-hour or 40-hour initial course.
OSHA advises that overdue workers complete the next available refresher. Whether additional or full initial retraining is necessary depends on the worker's familiarity with current site safety procedures and how much time has passed.
Your employer should evaluate the situation and document any training delay and corrective action.
Does OSHA certify or approve HAZWOPER training providers?
No. OSHA does not approve, certify, or endorse individual HAZWOPER training providers, courses, or trainers.
OSHA establishes the training requirements, while employers must ensure workers receive appropriate instruction and achieve the competencies needed for their duties.
PDH STAR's courses are based on the applicable OSHA HAZWOPER standards. A PDH STAR completion certificate documents the online coursework completed; it is not an OSHA-issued certification.
Will I receive a HAZWOPER certificate after the online course?
Yes. After successfully completing a PDH STAR online HAZWOPER course, you can access a downloadable Certificate of Completion.
This certificate documents completion of the online training coursework.
For initial hazardous waste site worker training, OSHA separately requires certification of completion of the applicable instruction and supervised field experience. Employers should retain the necessary training and qualification records.
Is HAZWOPER the same as OSHA 10 or OSHA 30?
No. OSHA 10-hour and 30-hour Outreach Training courses cover broader workplace or construction safety topics.
HAZWOPER is specialized training addressing hazardous waste operations, contaminated-site work, and applicable emergency response activities.
An OSHA 10 or OSHA 30 course does not automatically replace the HAZWOPER training required for covered operations. Some workers may need both types of instruction.
Do construction workers need HAZWOPER training?
Some construction workers do. HAZWOPER can apply to construction contractors performing hazardous waste cleanup, contaminated-site excavation, environmental remediation, and related covered operations.
OSHA's construction HAZWOPER standard is 29 CFR 1926.65.
Not every construction worker needs HAZWOPER training. Requirements depend on the nature of the project, potential hazardous substance exposure, and the employee's assigned duties.
Can employers purchase HAZWOPER training for multiple workers?
Yes. PDH STAR offers training options for contractors, environmental service providers, and businesses enrolling multiple employees.
Employers can inquire about group pricing, corporate purchasing, employee enrollment, and training administration.
Visit our Corporate Training page to request information and pricing for your workforce.
Regulatory reference: OSHA HAZWOPER Training FAQs and 29 CFR 1910.120 .
