The Washington State Department of Transportation (WSDOT) owns and operates 47 safety rest areas, most open to the public 24 hours a day. Features of the safety rest areas include parking, restrooms, drinking water, traveler information, vending machines, and public telephones. WSDOT estimates that about 24 million visitors use the state's safety rest areas annually.
It is unlawful for vehicles—which includes trailers, campers, and motorcycles—that are not disabled to park at safety rest areas for more than eight hours within a 24-hour period. Disabled vehicles may be parked at safety rest areas up to 48 hours before they are subject to mandatory impoundment. WSDOT may also designate parking zones with shorter time limits for operational efficiency and safety. Washington State Patrol is charged with enforcing these safety rest area parking limitations to the maximum extent practicable.
Commercial vehicles may park at safety rest areas up to an hour beyond federally mandated rest periods. The Federal Motor Carrier Safety Administration regulates commercial vehicle working hours. Most rest periods are either eight or ten hours, depending on the circumstances.
WSDOT must post appropriate signage at all safety rest areas regarding parking time limits and impoundment. The signage must include the times a vehicle may be impounded as an unauthorized vehicle, and the name, telephone number, and address of the towing firm where the vehicle may be redeemed.
Vehicles that are not disabled are subject to impoundment for violating safety rest area parking limits, in addition to disabled vehicles.
Signage regarding safety rest area parking time limits is required to be posted near each entrance, and on the property in a clearly conspicuous and visible location to all who park on the property. The signage must indicate a phone number for contacting the law enforcement agency, or WSDOT to locate the impounded vehicle.
The definition of unauthorized vehicle for the purposes of statutes related to towing and impoundment is amended to include vehicles subject to impoundment after being left unattended, and in violation of safety rest area parking time limits.