Hawaii Idling Restrictions
Idle Reduction Regulation
No gasoline- or diesel-powered vehicle may idle at a loading zone, parking or service area, route terminal, or other off-street areas, except for the following situations: during adjustment or repair of the engine; during auxiliary vehicle operations such as cranes and certain bulk carriers, provided no visible smoke is emitted and the vehicle is being used for its intended purpose; during loading and unloading of passengers, not to exceed three minutes; and during engine start-up and cool-down, not to exceed three minutes. (Reference Hawaii Administrative Rules 11-60.1-34)
