Washington
For Washington, implementing agency is Washington State Department of Ecology; class a training format is Combined Class A/B training from an approved vendor (classroom, web-based, independent study, or onsite) with a test to become certified; class b training format is Combined Class A/B training from an approved vendor (classroom, web-based, independent study, or onsite) with a test to become certified; class c training format is Training by the certified Class A/B operator, or through an approved training vendor; epa online training accepted is Not stated on this page; out-of-state training may be accepted if it meets Washington requirements, but in-state-only certifications such as Idaho's are not, recorded from its source on 2026-08-18.
- jurisdiction
- Washington verified
- implementing agency
- Washington State Department of Ecology verified
- class a training format
- Combined Class A/B training from an approved vendor (classroom, web-based, independent study, or onsite) with a test to become certified verified
- class b training format
- Combined Class A/B training from an approved vendor (classroom, web-based, independent study, or onsite) with a test to become certified verified
- class c training format
- Training by the certified Class A/B operator, or through an approved training vendor verified
- epa online training accepted
- Not stated on this page; out-of-state training may be accepted if it meets Washington requirements, but in-state-only certifications such as Idaho's are not our reading
- exam pass threshold
- Not specified on this page verified
- renewal interval years
- Not specified on this page; free site-specific online re-training for Class A/B operators is offered through WATOT verified
- state approved providers
- yes (Ecology-approved training vendor list) our reading
- regulatory citation
- Chapter 173-360A WAC verified
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
Training is available in a variety of formats, including classroom, web-based, independent study, and onsite training. Each class A/B operator will be required to pass a test to become certified. Class C operators may obtain their certification through training by the certified class A/B operator, or through an approved training vendor.
— ecology.wa.gov, retrieved 2026-08-18
Source
- ecology.wa.govhttps://ecology.wa.gov/regulations-permits/guidance-technical-assistance/ust-owner-and-operator-resources/operator-certification-training