MOTOR VEHICLES ‑- HOUSE TRAILER ‑- EXCISE TAX ‑- LICENSES ‑- NONRESIDENT MILITARY PERSONNEL ‑- SOLDIERS AND SAILORS CIVIL RELIEF ACT ‑- REFUNDS (1) and (2).  Under the soldiers and sailors civil relief act as recently construed by the United States supreme court, nonresident military personnel stationed in Washington can either license their motor vehicles and house trailers in their home state or license such vehicles in Washington without having to pay the excise tax imposed upon residents of this state by chapter 82.44 RCW and chapter 82.50 RCW. (3) The department of motor vehicles may, upon receipt of a proper application and proof, make refunds to nonresident servicemen who have under a mistake of law paid the motor vehicle excise tax in licensing automobiles in this state, provided the claim for refund is made within a period of two years from the date of payment.