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Does an online HAZWOPER certification count for hazardous waste work?
If your job needs HAZWOPER training, an online course alone does not meet OSHA's rule. OSHA's April 23, 2021 letter says a course needs teaching plus a hands-on part, and an online course can cover the teaching. At clean-up sites, supervised field work cannot be online. Your employer must make sure you are trained. We haven't confirmed which online courses any employer accepts.
By State Cert GuideChecked against the sources listed below.
The steps, in order
Check your work
Is it clean-up, waste storage and disposal, or emergency response?
Take the course
The hours depend on your job, with a trainer you can ask
Practice hands-on
OSHA's examples: putting on protective equipment, using air monitoring equipment
Get field experience
For clean-up site workers: directly supervised, after the course
Refresh every year
Clean-up and waste site workers: eight hours. Responders: enough to keep their skills, or show their skills once a year
Steps in order: find out if your work is covered, take the course for your job, do hands-on practice, get supervised field work if your job calls for it, repeat the refresher every year.
What the rule says
Which work does the standard cover?
Clean-up that a governmental body requires at uncontrolled hazardous waste sites.
Does it cover clean-ups under RCRA?
Yes. It covers corrective actions that clean up sites under the Resource Conservation and Recovery Act.
Does it cover voluntary clean-ups?
Yes, at sites a governmental body recognizes as uncontrolled hazardous waste sites.
Does it cover waste storage and disposal sites?
Yes. It covers hazardous waste work at treatment, storage, and disposal sites that fall under the rules the standard names.
Does it cover emergency response?
Yes. It covers response to releases of hazardous substances, or serious threats of releases, wherever the hazard is.
Are there limits?
Yes. The standard covers that work unless the employer can show that no worker is exposed and that no exposure to safety or health hazards is reasonably possible.
Which parts of the standard do clean-up sites follow?
All of it except paragraphs (p) and (q). Paragraph (p) is where the rules for waste storage and disposal sites are. Paragraph (q) covers emergency response.
Which part do waste storage and disposal sites follow?
Do the clean-up site hour rules apply to every HAZWOPER job?
No. The hour rules for clean-up sites come from paragraph (e) of the standard. It covers employees on clean-up sites who are exposed to hazardous substances, health hazards, or safety hazards, and their supervisors and the managers responsible for the site. Waste storage and disposal sites and emergency response have their own rules.
When must clean-up site training happen?
Before the work. Employees on site who are exposed to hazardous substances, health hazards, or safety hazards must be trained before they do hazardous waste operations that could expose them. Their supervisors and the managers responsible for the site must be too.
How long is the training for a general clean-up site worker?
At least 40 hours of teaching off the site. Then at least three days of actual field work, directly supervised by a trained, experienced supervisor.
Is there a shorter course for clean-up site workers?
Yes. It is for workers on site only now and then for one limited task, such as ground water monitoring or land surveying. They must be unlikely to be exposed over the permissible exposure limits and published exposure limits. They need at least 24 hours off the site and one day of supervised field work.
Is there another shorter course?
Yes. Workers who are regularly on site need at least 24 hours off the site and one day of supervised field work if their area was monitored and fully characterized. Exposures there must be under the limits, and respirators must not be needed. The characterization must show no health hazards and no possible emergency.
Can a 24-hour worker need more training?
Yes. A worker with 24 hours who becomes a general site worker, or who must wear a respirator, needs 16 more hours and two more days of training. That brings the total up to the general site worker level.
What about supervisors and managers at clean-up sites?
On-site supervisors and managers who run hazardous waste work need 40 hours of initial training and three days of supervised field work. That can drop to 24 hours and one day if they only oversee workers in the shorter track. They also need at least eight more hours of specialized training when they get the job.
How often do clean-up site workers repeat it?
Eight hours of refresher training every year. It covers the same subjects as the first training, any incidents from the past year that make good examples, and other relevant topics.
Who can teach clean-up site training?
A trainer who is qualified in the subject. That means a person who finished a train-the-trainer program, or who has the academic credentials and teaching experience for it.
Do I get a certificate at a clean-up site?
Yes. The instructor certifies each person who finishes the training and the supervised field work, and gives that person a written certificate. Anyone who is not certified, and has no equivalent training, is prohibited from hazardous waste operations.
Does my past training count at a new clean-up site?
It can. If an employer can show by records or a certificate that your training is equivalent, it does not have to repeat the initial training. You still need site-specific training before you enter a new site, plus supervised field experience at the new site.
What training do waste storage and disposal site workers need?
New employees exposed to health hazards or hazardous substances there get 24 hours of initial training. Refresher training is eight hours every year. After the initial training they get a written certificate. That paragraph lists no supervised field work.
Does past training count at a waste storage and disposal site?
It can, for current employees. If an employer can show by an employee's earlier work experience or training that it was equivalent to the initial training, the employee counts as trained for it. Equivalent training includes what existing employees learned from actual site work. Current employees still get eight hours of refresher training every year.
Does OSHA's 2012 letter agree?
Yes. It says different training rules apply at those facilities. It says initial training must be 24 hours and refresher training must be eight hours a year.
What training do emergency responders need?
It depends on the level. First responders at the operations level need at least eight hours of training. Or they need a work history that shows they can do the listed tasks. Their employer certifies it.
What about hazardous materials technicians?
They need at least 24 hours of training equal to the operations level. They also need competency in the listed areas. Their employer certifies it.
How often do emergency responders repeat it?
Every year. The refresher must have enough content and time to keep their competencies. Or they must show competency at least once a year.
What if I missed a refresher?
OSHA's training FAQ says to attend the next available course if you missed one. If a long time has passed since your first or refresher training, you may have to repeat the first training.
Who decides whether a trainer qualifies?
OSHA's training FAQ says that in the end it is the job of the employer whose workers are being trained to decide if the trainer meets the standard's rules for trainers.
I lost my certificate. Does OSHA have a record?
No. OSHA's training FAQ says it does not have records of persons who have completed HAZWOPER training.
Where can I get a replacement?
OSHA's training FAQ says you may be able to get one from the instructor or training group that gave your first course.
Who has to make sure I get trained?
Your employer. In its 2021 letter, OSHA said employers must make sure employees get HAZWOPER training from qualified trainers.
What does OSHA's training FAQ say about online courses?
It says employers need to know how an online course gives the hands-on training.
What counts as hands-on practice?
OSHA's training FAQ gives examples: putting on and taking off protective equipment, or using air monitoring equipment. Workers learn by practical experience. It is also a way to assess whether they have mastered the skills.
Does OSHA recommend an online course?
No. OSHA's training FAQ says it does not recommend, approve, certify, or endorse individual trainers or training programs. It adds that computer-based training by itself would not be enough to meet the standard's training rules.
How can an online course let me ask questions?
OSHA's training FAQ says one way is a phone hotline or an e-mail contact at the time of the training. Trainees then have direct access to a qualified trainer when their questions come up.
Does OSHA keep a list of courses?
No. OSHA's training FAQ says it does not keep a list of training providers.
Who at OSHA can point me to a course?
The FAQ lists the OSHA regional office or area office near you first. At the area office, ask for the HAZWOPER coordinator.
Who else at OSHA might know?
The FAQ suggests an OSHA State Consultation office in your area. It says they may know where training is offered.
Where else can I look?
The FAQ suggests colleges, universities, and community colleges in your area. It says many of them offer HAZWOPER training through their adult extension programs.
What are OSHA's letters?
OSHA says its letters do not create new or additional rules. They explain the rules and how they apply to particular cases.
Can that change?
Yes. OSHA says letters are affected when it updates a standard, a legal decision affects a standard, or new technology changes how a rule is read.
Which letter covers online classroom training?
A letter OSHA dated August 16, 2004.
What did the 2004 letter ask?
It asked whether the 40 hours of classroom training can be done only through an online course, or whether a hands-on part is needed too.
Is an online course enough by itself?
No, according to the 2004 letter. It says computer-based training by itself would not be enough to meet the intent of the standard. It also urges employers to be wary of relying solely on generic 'packaged' training programs. The training has site-specific parts tailored to each worker's duties.
When can an online course be part of the training?
The 2004 letter says computer-based programs can be part of an effective program. Trainees must be able to ask a qualified trainer questions. They must also get hands-on time with protective gear.
Which letter covers supervised field work?
A letter OSHA dated June 29, 2012.
What did the 2012 letter say about computer-based courses?
OSHA said a self-paced, interactive computer-based course can be a valuable training tool in an overall program. By itself, it said, the course is unlikely to meet the standard's training rules.
Can supervised field work be online?
No, according to the 2012 letter. OSHA said computer-based training cannot be used to meet the rules for supervised field work.
Does federal OSHA cover state and local workers?
In the 2012 letter, OSHA said its standards and its power to enforce them do not reach employees of state or local governments.
Who covers state and local workers then?
The 2012 letter says that for HAZWOPER, state and local public sector employees are covered by the states that run State Plans.
What if my state has no State Plan?
The 2012 letter says state and local government workers there are covered by the Environmental Protection Agency, under 40 CFR Part 311. It says the EPA's HAZWOPER standard was adopted to cover public sector workers who are not covered by the OSHA standard.
Do State Plans cover private employers too?
They can. OSHA's 2004 letter says California's State Plan covers private and public sector employers and employees. It says State Plans must implement rules that are 'at least as effective' as the federal standards. Check your own state's rule.
Which letter covers hands-on training?
A letter OSHA dated April 23, 2021.
What did the 2021 letter ask?
It asked whether the first 24- or 40-hour course should include actual hands-on training, however the teaching is delivered.
Does a classroom or online course need a hands-on part?
Yes, according to the 2021 letter. It says in-person, classroom, and computer-based HAZWOPER courses must include course teaching and an actual hands-on training part.
What if an online course has no hands-on part?
In the 2021 letter, OSHA said online training that gives workers no actual hands-on part would not comply with its worker training rules.
When does the hands-on part happen?
In the 2021 letter, OSHA said the hands-on part should happen during the first course. It must be done before the three-day field experience. Field experience is part of initial training. It takes place after the course.
Where people go wrong
- You buy an online course with no hands-on practice. OSHA's 2021 letter says online training with no actual hands-on part would not comply with its rules.
- You count on the course for your supervised field work. OSHA's 2012 letter says computer-based training cannot be used for supervised field work.
- You pick a generic course. OSHA's 2004 letter urges employers to be wary of relying solely on generic 'packaged' training programs. The training has parts tailored to each worker's duties.
- You skip the yearly refresher. Clean-up and waste site workers need eight hours every year. Responders need enough content and time to keep their skills, or show their skills once a year. OSHA's training FAQ says to attend the next available course if you miss one.
- You assume your certificate carries over to a new clean-up site. Certified employees new to a site still get site-specific training before they enter, plus supervised field experience at the new site.
Questions
Do I get a certificate for 8-hour training?
Yes. OSHA's training FAQ says the HAZWOPER standard requires a written certificate for each person certified for 8-, 24- or 40-hour training.
Does the 8-hour supervisor course also count as my yearly refresher?
OSHA's July 27, 1992 letter expected both. A site worker who becomes a supervisor or manager would get at least 16 hours that year: 8 hours of supervisor training and 8 hours of refresher. A second letter says OSHA does not expect duplicated effort where the topics overlap, but the employer must show every required topic was covered.
Can a past employer give me a copy of my HAZWOPER certificate?
Maybe. OSHA's training FAQ says you may be able to get a copy from any employer to whom you gave one.
Your next step
Before you pay for an online course, ask your employer how it gives you hands-on practice. If you work at a clean-up site, also ask who supervises your field experience. To read the rule itself, see OSHA's HAZWOPER standard. For OSHA's answers on training, see its HAZWOPER training FAQs.
Sources we read
- www.osha.gov › 29 CFR 1910.120, Hazardous waste operations and emergency response · read Nov 13, 2026
- www.osha.gov › HAZWOPER training FAQs · read Nov 13, 2026
- www.osha.gov › OSHA interpretation letter (April 23, 2021) · read Nov 13, 2026
- www.osha.gov › OSHA interpretation letter (June 29, 2012) · read Nov 13, 2026
- www.osha.gov › OSHA interpretation letter (August 16, 2004) · read Nov 13, 2026
- www.osha.gov › 1992 07 27 · read Nov 13, 2026
- www.osha.gov › 1992 05 13 0 · read Nov 13, 2026
Who publishes this guide
State Cert Guide is an independent guide to what each state requires. If a fact on this page is wrong, tell us and we fix it.