No traffic control signal or device may be erected or maintained upon any city street designated as forming a part of the route of a primary state highway or secondary state highway unless first approved by the state department of transportation.
RCW 46.61.085
Traffic control signals or devices upon city streets forming part of state highways—Approval by department of transportation.
1984 c 7 s 62; 1965 ex.s. c 155 s 14.
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.