AGO 1981 NO. 2 >
(1) Under RCW 46.10.110, a board of county commissioners (as the responsible governing body in the case of county roads) may open to snowmobiles a county road which is also open to conventional vehicles.(2) Neither the provisions of chapter 46.16 RCW nor those of chapter 46.37 RCW apply to snowmobiles, even when operated on a public highway or roadway which is also open to conventional vehicles.(3) A county may not establish equipment standards or impose age qualifications for the operation of snowmobiles which are inconsistent with RCW 46.10.090 or RCW 46.10.120, respectively.