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Current codes Last updated September 21, 2026
Contractor exam prep in 45 states
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Washington: how to get licensed

Washington contractors are licensed by the Washington State Dept. of Labor & Industries (L&I). For the classifications we sell here, follow the board’s applicant packet: qualify, apply, sit the exam they publish, then complete any bond or insurance they require.

Choose the classification below. The next page walks the path for that license, then stays on this site: our state hub and the matching prep.

Exam prep hub Washington hub Business exam

Trade exams (this is the license for the work)

Pick the trade you want to bid. That is the classification on the license.

Open the Washington hub