Bureau of Reclamation’s official “rules of conduct” for campers, boondockers, and other visitors are codifed under…
§ 420.11 Requirements – vehicles.
Each off-road vehicle that is operated on Reclamation lands shall meet the following requirements:
(a) It shall conform to applicable State laws and vehicle registration requirements.
(b) It shall be equipped with a proper muffler and spark arrestor in good working order and in constant operation. The spark arrestor must conform to Forest Service Spark Arrestor Standard 5100-1a, and there shall be no muffler cutout, bypass, or similar device.
(c) It shall have adequate brakes and, for operation from dusk to dawn, working headlights and taillights.