RCW 46.16A.360: Thirty, sixty, or ninety-day permits for registered out-of-state commercial vehicles.

The owner of a commercial vehicle properly registered in another state may apply to the department, county auditor or other agent, or subagent appointed by the director for an out-of-state commercial vehicle intrastate permit when operating the commercial vehicle in Washington state for periods less than one year. The permit may be issued for a thirty, sixty, or ninety-day period. For each thirty-day period, the cost of each permit is one-twelfth of the fees required under chapter 82.44 RCW if the vehicle is subject to locally imposed motor vehicle excise taxes and (1) under RCW 46.17.355 (1) if the vehicle is a motor vehicle or (2) under RCW 46.17.350 (1)(c) if the vehicle is a commercial trailer.