AN ACT Relating to temporary-use spare tires; and amending RCW 46.37.420, 46.37.425, and 46.61.455.

BE IT ENACTED BY THE LEGISLATURE OF THE STATE OF WASHINGTON:

Sec. 1. Section 46.37.420, chapter 12, Laws of 1961 as last amended by section 721, chapter 330, Laws of 1987 and RCW 46.37.420 are each amended to read as follows:

(1) It is unlawful to operate a vehicle upon the public highways of this state unless it is completely equipped with pneumatic rubber tires except vehicles equipped with temporary-use spare tires that meet federal standards that are installed and used in accordance with the manufacturer's instructions.

(2) No tire on a vehicle moved on a highway may have on its periphery any block, flange, cleat, or spike or any other protuberance of any material other than rubber which projects beyond the tread of the traction surface of the tire, except that it is permissible to use farm machinery with tires having protuberances that will not injure the highway, and except also that it is permissible to use tire chains or metal studs imbedded within the tire of reasonable proportions and of a type conforming to rules adopted by the state patrol, upon any vehicle when required for safety because of snow, ice, or other conditions tending to cause a vehicle to skid. It is unlawful to use metal studs imbedded within the tire between April 1st and November 1st. The state department of transportation may, from time to time, determine additional periods in which the use of tires with metal studs imbedded therein is lawful.

(3) The state department of transportation and local authorities in their respective jurisdictions may issue special permits authorizing the operation upon a highway of traction engines or tractors having movable tracks with transverse corrugations upon the periphery of the movable tracks or farm tractors or other farm machinery, the operation of which upon a highway would otherwise be prohibited under this section.

(4) Tires with metal studs imbedded therein may be used between November 1st and April 1st upon school buses and fire department vehicles, any law or regulation to the contrary notwithstanding.

Sec. 2. Section 3, chapter 77, Laws of 1971 as last amended by section 722, chapter 330, Laws of 1987 and RCW 46.37.425 are each amended to read as follows:

No person shall drive or move or cause to be driven or moved any vehicle, the tires of which have contact with the driving surface of the road, subject to registration in this state, upon the public highways of this state unless such vehicle is equipped with tires in safe operating condition in accordance with requirements established by this section or by the state patrol.

The state patrol shall promulgate rules and regulations setting forth requirements of safe operating condition of tires capable of being employed by a law enforcement officer by visual inspection of tires mounted on vehicles including visual comparison with simple measuring gauges. These rules shall include effects of tread wear and depth of tread.

A tire shall be considered unsafe if it has:

(1) Any ply or cord exposed either to the naked eye or when cuts or abrasions on the tire are probed; or

(2) Any bump, bulge, or knot, affecting the tire structure; or

(3) Any break repaired with a boot; or

(4) A tread depth of less than 2/32 of an inch measured in any two major tread grooves at three locations equally spaced around the circumference of the tire, or for those tires with tread wear indicators, a tire shall be considered unsafe if it is worn to the point that the tread wear indicators contact the road in any two major tread grooves at three locations equally spaced around the circumference of the tire; or

(5) A legend which indicates the tire is not intended for use on public highways such as, "not for highway use" or "for racing purposes only"; or

(6) Such condition as may be reasonably demonstrated to render it unsafe; or

(7) If not matched in tire size designation, construction, and profile to the other tire and/or tires on the same axle, except for temporary-use spare tires that meet federal standards that are installed and used in accordance with the manufacturer's instructions.

No person, firm, or corporation shall sell any vehicle for use on the public highways of this state unless the vehicle is equipped with tires that are in compliance with the provisions of this section. If the tires are found to be in violation of the provisions of this section, the person, firm, or corporation selling the vehicle shall cause such tires to be removed from the vehicle and shall equip the vehicle with tires that are in compliance with the provisions of this section.

It is a traffic infraction for any person to operate a vehicle on the public highways of this state, or to sell a vehicle for use on the public highways of this state, which is equipped with a tire or tires in violation of the provisions of this section or the rules and regulations promulgated by the state patrol hereunder: PROVIDED, HOWEVER, That if the violation relates to items (1) to (7) inclusive of this section then the condition or defect must be such that it can be detected by a visual inspection of tires mounted on vehicles, including visual comparison with simple measuring gauges.

Sec. 3. Section 46.48.110, chapter 12, Laws of 1961 and RCW 46.61.455 are each amended to read as follows:

Except for vehicles equipped with temporary-use spare tires that meet federal standards, it shall be unlawful to operate any vehicle equipped or partly equipped with solid rubber tires or hollow center cushion tires, or to operate any combination of vehicles any part of which is equipped or partly equipped with solid rubber tires or hollow center cushion tires, so long as solid rubber tires or hollow center cushion tires may be used under the provisions of this title, upon any public highway of this state at a greater rate of speed than ten miles per hour: PROVIDED, That the temporary-use spare tires are installed and used in accordance with the manufacturer's instructions.