Provides that the driver of a vehicle waiting in a holding area operated by Washington state ferries shall not have the vehicle idle in excess of three consecutive minutes if the vehicle is gasoline-powered or in excess of five consecutive minutes if the vehicle is diesel-powered, unless: (1) The vehicle is being used as an emergency vehicle in an emergency situation;

(2) The vehicle is required by a federal, state, or local law or official, but only to the extent necessary to comply with such a requirement;

(3) The vehicle's engine is providing auxiliary power for activities other than heating or air conditioning, such as loading, refrigeration, well drilling, or farming;

(4) Running the vehicle's engine is necessary for maintenance, servicing, repair, or diagnostic purposes;

(5) Running the vehicle's engine during adverse weather conditions is necessary to ensure the safe operation of the vehicle; or

(6) The ambient air temperature is below twenty degrees Fahrenheit for gasoline-powered vehicles or below thirty-two degrees Fahrenheit for diesel-powered vehicles, and idling of the vehicle is necessary to ensure the safety or health of the passengers or driver.

Declares that RCW 47.04.090 does not apply to this act.