Diesel Technician License Requirements in Washington
License Not RequiredLast verified March 24, 2026
Agency And Exam
Issuing agency: Not listed
Exam provider: Not listed
Reciprocity And License Levels
License levels
Not listed
Reciprocity states
None listed
Notes
Washington State does not require a statewide license for diesel technicians for general repair work. Auto repair shops must be registered with the Washington State Department of Licensing. Employers commonly require ASE certifications. Verify with the Washington State Department of Licensing at dol.wa.gov for any individual technician requirements.