Wash. Rev. Code § 46.37.423
No person, firm, or corporation shall sell or offer for sale for use on the public highways of this state any new pneumatic passenger car tire which does not meet the standards established by federal motor vehicle safety standard No. 109, as promulgated by the United States department of transportation under authority of the National Traffic and Motor Vehicle Safety Act of 1966 (80 Stat. 719, 728; 15 U.S.C. 1392, 1407).
The applicable standard shall be the version of standard No. 109 in effect at the time of manufacture of the tire.
It is a traffic infraction for any person, firm, or corporation to sell or offer for sale any new pneumatic passenger car tire which does not meet the standards prescribed in this section unless such tires are sold for off-highway use, as evidenced by a statement signed by the purchaser at the time of sale certifying that he or she is not purchasing such tires for use on the public highways of this state.
RCW 46.37.423
Effective date-Severability-1979 ex.s. c 136: See notes following RCW 46.63.010.