STATE PERMIT GUIDE

Washington: plan the permit work.

Every field below says what FCC has verified against an official source and what it has not. A field marked Confirmation required is one FCC has not verified — it is not a requirement that does not exist, and it is never a zero.

Issuing authority: Washington State Department of Transportation (WSDOT)
Checked by FCC: 4 of 22 fields verified, last on 2026-09-20

Plan a move through Washington Official permit information ↗

Dimensions & weight

General loaded width: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
General loaded height: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Configuration-specific length: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Gross combination weight: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Axle / bridge / tire limits: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Load overhang: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.

Permits & costs

Single-trip permit: Single Trip OSOW is a route-specific 3-day permit for nondivisible loads.
Read against the cited official page on 20 September 2026. Exceptions and permit conditions apply.
Verified 2026-09-20 · Permit types & fees
Annual permit: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Validity: Single Trip OSOW permit is 3 days.
Read against the cited official page on 20 September 2026. Exceptions and permit conditions apply.
Verified 2026-09-20 · Permit types & fees
Published lead time: Self-issued permits available 24/7; self-issued requests needing WSDOT approval are processed within 3 business days, with longer timelines for loads needing approved applications.
Read against the cited official page on 20 September 2026. Exceptions and permit conditions apply.
Verified 2026-09-20 · Permit types & fees
Special / superload review: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
State permit fee: Dimensional single-trip permit $10; weight permits vary with minimum $14. Read against the cited official page on 20 September 2026. Exceptions and permit conditions apply.Verified 2026-09-20 · Permit types & fees

Escorts & markings

Pilot cars / escorts: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Police escort: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Height pole: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Signs / flags / lights: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.

When and where to move

Travel hours: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Weekend movement: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Holiday movement: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Seasonal restrictions: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Weather restrictions: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.
Local / toll jurisdictions: Confirmation required
FCC has not verified this against an official source yet, so nothing is published. Confirm the requirement with the Washington issuing authority — a blank field is not a requirement that does not exist.

Requirements and fees can change. Final permits, routes and movement requirements are determined by the applicable issuing authorities. State permits may not cover local or toll roads.

Resource center

Plan the details

Ten guides, in the order the work happens.

Oversized electrical transformer secured on a heavy-haul lowboy trailer.

04Start here How to plan a multi-state oversize load One route, several permits, and the order to get them in. It is the one that matters most from where you are. Read the guide →

01Oversize & overweight permits: what shippers need to knowThe whole process end to end, in plain terms.02What makes a load oversize or overweight?The legal limits, and where your load sits against them.03How to measure an oversize load before requesting permitsWhere to measure from, and the figures the state asks for.04How to plan a multi-state oversize loadOne route, several permits, and the order to get them in.05Route surveys, bridge clearances and permitted routesWhen a survey is required, and who signs off on the route.06State permits vs city and local permitsWhat a state permit does not cover.07How oversize permit costs are calculatedWhat each state charges for, and how a total adds up.08Pilot cars and escorts: when are they required?The thresholds that trigger an escort, and what they cost.09Oversize load travel hours, weekends and holidaysWhen you can legally be on the road, and when you cannot.10What can make an oversize permit invalid?Changes that void a permit after it has been issued.