RCW 46.04.431 Definition of “Highway”
"Highway" means the entire width between the boundary lines of every way publicly maintained when any part thereof is open to the use of the public for purposes of vehicular travel.
Looking for more information? Check out these articles:
Lamps and other Equipment
Carrying Articles
Clinging to Vehicles
Riding on Bicycles
Riding on Roadways and Bicycle Paths
Hand Signals
Traffic Laws apply to Persons Riding Bicycles
Effects of Regulations
Parent Permission
Riding under the Influence
Definition of "Vehicle"
Definition of "Roadway"
Definition of "Hours of Darkness"
Definition of "Bicycle"