Oregon Revised Statutes Protection from Fire § 480.340

(1) A coin-operated or self-service dispensing device for the liquids.

(2) A device that permits the dispensing of the liquids when the hand of the operator of the discharge nozzle is removed from the control lever, except one equipped with an automatic nozzle of a type that has been approved by the State Fire Marshal and that has a latch-open device as an integral part of the assembly, capable of shutting off the flow of the liquids reliably when the tank is filled or when the nozzle falls or slips from the filling neck of the tank. A person may not use an automatic nozzle to dispense the liquids unless the owner, operator or employee is in the immediate vicinity of the tank being filled.