Is Weigh Stations Legal in Washington? (2026)
Yes. In Washington, weigh stations is legal. Washington requires covered commercial vehicles to stop at signed open scales, with specific bus, light-vehicle, tow-truck and farm-vehicle exceptions..
Key facts
- Status
- Legal
- Permit required
- No
- Jurisdiction
- Washington
- Last reviewed
- 2026-04-09
Weigh Stations laws in Washington
RCW 46.44.105(3) requires commercial motor vehicles as defined in RCW 46.32.005 to stop when proper traffic-control signs indicate a weighing station is open. Exceptions include buses as defined in that section and vehicles with a GVWR or GCWR of 16,000 pounds or less that are not transporting the specified hazardous materials. Unladen tow trucks, regardless of weight, and farm vehicles carrying farm produce with a GVWR or GCWR of 26,000 pounds or less may also bypass under this subsection. These exceptions do not remove the separate duty to comply when an officer directs a vehicle or combination to stop and be weighed.
Frequently asked questions
Is weigh stations legal in Washington for travelers?
For travelers visiting Washington, weigh stations is currently legal. RCW 46.44.105(3) requires commercial motor vehicles as defined in RCW 46.32.005 to stop when proper traffic-control signs indicate a weighing station is open. Exceptions include buses as defined in that section and vehicles with a GVWR or GCWR of 16,000 pounds or less that are not transporting the specified hazardous materials. Unladen tow trucks, regardless of weight, and farm vehicles carrying farm produce with a GVWR or GCWR of 26,000 pounds or less may also bypass under this subsection. These exceptions do not remove the separate duty to comply when an officer directs a vehicle or combination to stop and be weighed.
Do I need a permit for weigh stations in Washington?
Washington does not specifically require a permit for weigh stations, though general regulations apply.
Can I transport weigh stations through Washington?
Transport laws for weigh stations in Washington depend on the specific item and your route. Generally, transport is allowed if you comply with state regulations. Always check states you pass through.
What are the penalties for weigh stations violations in Washington?
Penalties for weigh stations violations in Washington vary based on the specific offense. Always verify current laws before traveling.