Access
Access means any method of entering or traversing on or across Service-administered lands or waters, including but not limited to: Vehicle, watercraft, fixed-wing aircraft, helicopter, unmanned aerial vehicle, off-road vehicle, mobile heavy equipment, snowmobile, pack animal, and foot. Access does not include the use of aircraft, including, but not limited to, airplanes, helicopters, and unmanned aircraft vehicles, that do not land on, or are not launched from, Service-administered lands or waters.
Source
50 CFR § 29.50
Scoping language
In addition to the definitions in 25.12, 29.21, and 36.2 of this subchapter, the following definitions apply to this subpart: