Washington requires contractors to register with L&I, with general and specialty contractor categories backed by bond and insurance filings.
Cities and counties still control permits, inspections, local business licensing, and job-specific approvals.
Washington requires contractors to register with L&I, with general and specialty contractor categories backed by bond and insurance filings.
Contractor registration requires general liability insurance, and employers must manage workers' compensation through Washington L&I.
Use the state authority as the baseline, then confirm the local process before filing.
Washington requires contractors to register with L&I, with general and specialty contractor categories backed by bond and insurance filings.
Cities and counties still control permits, inspections, local business licensing, and job-specific approvals.
Contractor registration requires general liability insurance, and employers must manage workers' compensation through Washington L&I.
Choose a county to find indexed cities, permit offices, and trade-specific requirements.
These official sources were reviewed together on Jul 10, 2026. Confirm with the authority before filing.
Licensing, renewal, board rules, and professional-scope requirements.
lni.wa.govOpen official source ↗Employer coverage, thresholds, exemptions, and claims administration.
lni.wa.govOpen official source ↗Adopted codes, state amendments, and plan-review authority.
sbcc.wa.govOpen official source ↗Open the neighboring state file to confirm licensing, reciprocity, and local registration.
Washington compliance guides are public. Start with the county where the work will happen.