Which HAZWOPER training fits your assignment?

Confirm which HAZWOPER provisions apply

HAZWOPER means Hazardous Waste Operations and Emergency Response. This guide focuses on cleanup-worker training under 29 CFR 1910.120(e) and 29 CFR 1926.65(e). Coverage depends on work activities and site conditions; a job title or construction assignment alone does not settle it. [1] [2]

For example, an equipment operator excavating contaminated soil and a surveyor making an occasional site visit may have different training needs. Review what each person will do, potential exposures, and protective measures before selecting a course.

Compare 24-hour and 40-hour pathways

Paragraph (e)(3) sets these minimums for covered cleanup workers. Field experience must be under direct supervision of a trained, experienced supervisor. [1] [2]

Initial cleanup-worker training under paragraph (e)(3)

Minimum preparation	When it applies
40 hours off site + 3 field daysParagraph (e)(3)(i)	General site workers performing hazardous-substance removal or other activities involving actual or potential exposure to hazardous substances and health hazards.
24 hours off site + 1 field dayParagraph (e)(3)(ii)	Occasional visits for a specific, limited task, with exposure above permissible and published exposure limits unlikely. Examples include groundwater monitoring or surveying.
24 hours off site + 1 field dayParagraph (e)(3)(iii)	Regular work in monitored, fully characterized areas with exposures below permissible and published limits, no need for respirators, and no identified health hazards or possibility of an emergency developing.

A short visit does not automatically qualify someone for 24-hour training. Employers need to confirm that duties and exposure conditions fit an applicable pathway.

Upgrade when assignments change

Under paragraph (e)(3)(iv), workers with qualifying 24-hour training who become general site workers or must wear respirators need 16 additional instructional hours and two additional field days. Those additions bring preparation to the 40-hour pathway. Review training before assigning expanded duties. [1] [2]

Online and blended upgrades are available. If your previous 24-hour instruction was completed through a different provider, documentation is required before a 40-hour course certificate can be issued. Confirm prerequisites and remaining hands-on arrangements before purchase. [10] [11]

Plan supervisor and refresher training

Initial supervisor training

On-site managers and supervisors responsible for covered cleanup workers need applicable initial instruction and supervised field experience, plus at least eight additional hours of specialized training at assignment. Paragraph (e)(4) allows the 24-hour/one-day foundation only when their responsibilities are limited to workers qualifying under (e)(3)(ii) or (iii). Instruction must address responsibilities such as employer safety programs, PPE, spill containment, and hazard monitoring. [1] [2]

Initial supervisor training serves a separate purpose from annual refresher training. OSHA explains that a worker becoming a supervisor needs both the additional supervisor instruction and required annual refresher instruction. [5]

Annual refresher training

Paragraph (e)(8) requires eight hours each year for covered employees, managers, and supervisors. Content should address relevant worker or supervisor topics and lessons from incidents. A refresher does not replace initial preparation. [1] [13]

For someone who has already completed initial supervisor training, the supervisor refresher listed here can serve as the annual HAZWOPER refresher; its description says a separate regular refresher is not also needed. Employers should confirm coverage suits current responsibilities. [14]

Missed a refresher? OSHA advises attending the next available course. Extended gaps may require more extensive retraining, assessed case by case. Have your employer review prior training, retained knowledge, and expected duties before returning to covered work. [3]

Compare CLS course options

These courses are available through the CLS training portal. Course pages show prices, enrollment links, and details to review with your employer. Select a training pathway first, then choose a delivery format that fits your practical-training arrangements.

Prices checked October 1, 2026. Prices are in USD and come from our CLS catalog. Confirm current pricing, prerequisites, and classroom availability in our training portal before purchase.

Spanish-language versions, wallet-card options, and packages are also listed. Browse all HAZWOPER courses →

Arrange hands-on and field preparation

OSHA permits online instruction as part of a broader training program, but computer-based training alone is insufficient. Learners need hands-on practice with relevant equipment and access to a qualified trainer for questions. Review how those needs will be met when choosing an online course. [3] [4]

Before mobilization, confirm site-specific hazards, protective equipment, decontamination, and emergency procedures. Review any applicable medical-surveillance or respiratory-protection requirements as part of job preparation. [1] [2]

Check completion records before mobilizing

Paragraph (e)(6) calls for written certification after required training and field experience are successfully completed. A provider’s online-course certificate documents that course; employers also need to account for practical instruction, supervised experience, and remaining site requirements. OSHA does not approve or certify individual HAZWOPER courses or trainers. [1] [3]

For a useful training file, collect:

• Initial course records and any upgrade or supervisor certificates.
• Evidence of hands-on instruction and completed supervised field experience.
• Current refresher records and documentation of site-specific preparation.

Confirm which documents your employer or client requires before sending a crew to site. State-plan requirements may differ from federal OSHA requirements. [5]

This guide supports course selection for covered cleanup work. Employers remain responsible for confirming applicable requirements and ensuring personnel are prepared for assigned duties.