Washington statute
RCW 46.61.428 — Slow-moving vehicle driving on shoulders, when
Current through 2026 Regular Session
Part of Chapter 46.61: Rules Of The Road, Revised Code of Washington.
Full text of RCW 46.61.428
Statutory text current through the 2026 Regular Session. This publication reproduces the official text of the Revised Code of Washington from the Code Reviser's published files; it is not the official statutes of the State of Washington.
(1) The state department of transportation and local authorities are authorized to determine those portions of any two-lane highways under their respective jurisdictions on which drivers of slow-moving vehicles may safely drive onto improved shoulders for the purpose of allowing overtaking vehicles to pass and may by appropriate signs indicate the beginning and end of such zones.
(2) Where signs are in place to define a driving-on-shoulder zone as set forth in subsection (1) of this section, the driver of a slow-moving vehicle may drive onto and along the shoulder within the zone but only for the purpose of allowing overtaking vehicles to pass and then shall return to the roadway.
(3) Signs erected to define a driving-on-shoulder zone take precedence over pavement markings for the purpose of allowing the movements described in subsection (2) of this section.
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