Off-road vehicle
Off-road vehicle means any motorized vehicle capable of, or designed for, travel on or immediately over land, water, or other natural terrain, excluding:
(1) Any nonamphibious registered motorboat;
(2) Any military, fire, emergency, or law enforcement vehicle while being used for emergency purposes;
(3) Any vehicle whose use is expressly authorized by the authorized officer, or otherwise officially approved;
(4) Vehicles in official use;
(5) E-bikes, as defined in paragraph (j) of this section:
(i) While being used on roads and trails upon which mechanized, non-motorized use is allowed;
(ii) That are being used in a manner where the motor is not exclusively propelling the e-bike for an extended period of time; and
(iii) Where the authorized officer has expressly determined, as part of a land-use planning or implementation-level decision, that e-bikes should be treated the same as non-motorized bicycles; and
(6) Any combat or combat support vehicle when used in times of national defense emergencies.