Welder License Requirements in California

California does not require a statewide occupational license for welders. However, the California Department of Industrial Relations enforces safety standards. Welders on public works or certain industrial projects may need employer-verified AWS or ASME certifications. Contractors performing welding work may need a C-60 Welding Contractor license from the California Contractors State License Board (https://www.cslb.ca.gov/).