WAC 296-305-06513
WAC 296-305-06513. Refueling areas
(1) Refueling pumps, if installed, must be in accordance with the provisions of the International Fire Code and WAC 296-24-33015 .
(2) Dispensing of Class 1 liquids must be as required in the International Fire Code.
(3) Spillage of oil or fuel must be properly disposed of or completely evaporated and the fuel tank cap replaced before restarting engine.
(4) Fueling areas must be posted - " NO SMOKING - STOP YOUR MOTOR. "