Transfer Your Contractor License to Washington: Reciprocity & Endorsement (2026)

Last verified: 2026-08-07 · source: Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration ↗

Washington offers trade-specific reciprocity through the Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration, covering electrical, plumbing work for licensees from states including Oregon, Idaho. These agreements waive the relevant trade exam — not the business and law exam, bond, or registration. Fee: $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.). Select your trade and origin in the checker for the exact answer.

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Verdict

Licensure by endorsement

Read Washington's agreements one trade at a time — that is the mistake most contractors make here. A deal that waives the electrical exam says nothing about general building, and a commercial agreement rarely covers residential work. The tables below separate them so you can see exactly which of your licenses travels and which does not.

All three facts were read live on 2026-08-07 from L&I's own pages and its current application form (revision 07-2026). Contractor registration under RCW 18.27 is not an exam-based license, so there is nothing to reciprocate at the general/specialty contractor level — the $150.20 fee buys a registration, not a licence transfer. Electrical reciprocity is Oregon-only and journey-level-only; aggregator claims that Washington reciprocates electrical licences with Idaho, Montana, Utah or Wyoming are wrong and are rejected here. Plumbing reciprocity is Idaho-only. No separate statewide HVAC licence exists, so no HVAC trade entry is asserted.

Washington requirements at a glance

Out-of-state contractor license transfer requirements for Washington, verified 2026-08-07
Exam	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.
Additional requirements	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
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.)
Processing time	L&I does not publish a processing-time range for reciprocal trade applications; set null rather than estimated.

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 — 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 on this page).
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

Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration ↗Washington application ↗

Coming from a specific state?

Direction matters — these guides cover the exact move into Washington:

California → Washington Florida → Washington Georgia → Washington Idaho → Washington Illinois → Washington Michigan → Washington New York → Washington North Carolina → Washington Ohio → Washington Oregon → Washington Pennsylvania → Washington Texas → Washington

Frequently asked questions

Does my contractor license transfer to Washington?

Which states does Washington have electrical contractor reciprocity with?

Oregon (verified 2026-08-07 against the Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration). L&I reciprocal 01 General Journey Level electrician certificate — Oregon only. Master (01) certificates cannot be obtained through reciprocity. Licenses not obtained through an Oregon examination cannot be reciprocated.

Which states does Washington have plumbing contractor reciprocity with?

Idaho (verified 2026-08-07 against the Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration). L&I states 'Washington State reciprocates with the state of Idaho.' The applicant submits the active Idaho journey-level card and photo ID and pays the certification fee; the $202.10 Washington plumber exam is not required.

Does reciprocity waive all of Washington's requirements?

No. Washington's reciprocity waives the relevant trade exam only; the business/law exam, financial statement, bond, and insurance still apply.

What does a Washington contractor license 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..

Sources

Primary sources only — official boards and compact commissions. Data last verified 2026-08-07.

Reviewed by Billy Reiner, Editor · verified against primary sources 2026-08-07

How we verify · All sources · spot an error? [email protected]