Contractor License from California to Washington: Does It Transfer? (2026)
Last verified: 2026-08-07 · source: Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration ↗
A contractor license transfers from California to Washington by endorsement — there is no automatic reciprocity, but you do not start over. Apply to the Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration, verify your California license, and meet Washington's endorsement requirements. Washington does not license general or specialty contractors by examination — L&I registers them under RCW 18.27, so there is no contractor exam and no contractor-level reciprocity; every firm files a fresh registration with a surety bond and liability insurance. Trade certification is separate and narrow: the 01 General Journey Level electrician certificate can be obtained by reciprocity from Oregon only, and Washington master (01) certificates cannot be obtained by reciprocity at all. Journey-level plumber certification can be obtained by reciprocity from Idaho only, which waives the Washington plumber exam. HVAC is not separately licensed statewide..
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Verdict
Licensure by endorsement
Washington does not have a trade agreement covering California for the selected trade, so this move runs on Washington's case-by-case endorsement process. If you do commercial general-building work, check whether Washington accepts the NASCLA exam — passing it once can replace the trade exam here and in about fourteen other states. Electricians should check Washington's NERA status.
What changes, California → Washington
| California (current) | Washington (destination) | |
|---|---|---|
| Application fee | $650–$800 (Original license application (exam or waiver, one classification) $450 + initial license fee $200 sole owner / $350 non-sole owner. The $25,000 bond premium and Live Scan fingerprint fees are additional.) | $114.6–$242.7 (Electrical reciprocal 01 General Journey Level application $114.60, of which $44.20 is non-refundable after submission; online payment is not available, checks only. Plumber journey-level certification $242.70 on the Idaho reciprocal path (the $202.10 exam fee is avoided). Contractor registration, which is a separate non-reciprocal filing, is $150.20.) |
| Processing time | CSLB does not publish a firm reciprocity processing range. | L&I does not publish a processing-time range for reciprocal trade applications; set null rather than estimated. |
| Licensing authority | California Contractors State License Board (CSLB) | Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration |
The destination column is what you must satisfy — Washington sets the rules for this move.
Step by step
- Confirm Washington's current requirements on the Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration website (linked below) — rules change.
- Submit the endorsement application to the Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration (application linked below).
- Arrange license verification from your current state.
- Electrical: hold an Oregon Supervising Electrician license or an Oregon General Journeyman (J) license earned through an Oregon 8,000-hour apprenticeship, obtained by Oregon examination.
- Electrical: the Oregon license must be current and active with no violations or conditions in the past three years.
- Electrical: never have held a Washington 01 General Journey Level certificate, or failed its exam, within the past two years.
- Plumbing: email a copy of the active Idaho journey-level card and a government-issued photo ID to L&I.
- Contractors must register with L&I and post a $30,000 (general) or $15,000 (specialty) surety bond plus liability insurance.
- Pay the fees ($114.6–$242.7 (Electrical reciprocal 01 General Journey Level application $114.60, of which $44.20 is non-refundable after submission; online payment is not available, checks only. Plumber journey-level certification $242.70 on the Idaho reciprocal path (the $202.10 exam fee is avoided). Contractor registration, which is a separate non-reciprocal filing, is $150.20.)) and allow L&I does not publish a processing-time range for reciprocal trade applications; set null rather than estimated..
Official links
Related guides
Frequently asked questions
Does Washington accept a California contractor license?
A contractor license transfers from California to Washington by endorsement — there is no automatic reciprocity, but you do not start over. Apply to the Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration, verify your California license, and meet Washington's endorsement requirements. Washington does not license general or specialty contractors by examination — L&I registers them under RCW 18.27, so there is no contractor exam and no contractor-level reciprocity; every firm files a fresh registration with a surety bond and liability insurance. Trade certification is separate and narrow: the 01 General Journey Level electrician certificate can be obtained by reciprocity from Oregon only, and Washington master (01) certificates cannot be obtained by reciprocity at all. Journey-level plumber certification can be obtained by reciprocity from Idaho only, which waives the Washington plumber exam. HVAC is not separately licensed statewide..
What still applies even if reciprocity covers my trade?
Washington's business and law exam, financial statement, bond, and registration — reciprocity waives the trade exam only, not these.
What does the California-to-Washington move cost and how long does it take?
$114.6–$242.7 (Electrical reciprocal 01 General Journey Level application $114.60, of which $44.20 is non-refundable after submission; online payment is not available, checks only. Plumber journey-level certification $242.70 on the Idaho reciprocal path (the $202.10 exam fee is avoided). Contractor registration, which is a separate non-reciprocal filing, is $150.20.); processing L&I does not publish a processing-time range for reciprocal trade applications; set null rather than estimated..
Would the NASCLA exam help for this move?
If you do commercial general-building work, possibly — about 15 states accept the NASCLA Accredited Commercial General Building exam toward licensure. Check whether Washington is one on the Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration site.
Sources
Primary sources only — official boards and compact commissions. Data last verified 2026-08-07.
- WA L&I — Application for a Reciprocal 01 General Journey Level Electrician Certificate, form F500-148-000 rev. 07-2026 (Oregon only; $114.60; master cannot be reciprocated) ↗ (accessed 2026-08-07)
- WA L&I — Plumber Certification: Get or Renew Your Certification (reciprocates with Idaho; certification $242.70, exam $202.10) ↗ (accessed 2026-08-07)
- WA L&I — Register as a Contractor (RCW 18.27 registration, $150.20, $30,000/$15,000 bonds) ↗ (accessed 2026-08-07)
- California CSLB — Reciprocity (program states: Arizona, Louisiana, Mississippi, Nevada, North Carolina) ↗ (accessed 2026-07-21)
- California CSLB — Reciprocal Classifications List (AZ full incl. C-10/C-36/C-20; NV incl. C-20; LA/MS/NC = B only) ↗ (accessed 2026-07-21)
- California CSLB — Reciprocity Requirements (active license in good standing for the previous 5 years; NASCLA 'B' waiver) ↗ (accessed 2026-07-21)
- California CSLB — List of All Fees ($450 application; $200 sole / $350 non-sole initial license) ↗ (accessed 2026-07-21)
Reviewed by Billy Reiner, Editor · verified against primary sources 2026-08-07
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