The National Park Service (NPS) is advising visitors that the use of unmanned aircraft systems (UAS) is prohibited within the boundaries of Yosemite National Park due to regulations outlined in the Code of Federal Regulations (CFR).
Specifically, the NPS says that UAS operations within Yosemite's boundaries are illegal under all circumstances. According to the CFR, ‘delivering or retrieving a person or object by parachute, helicopter or other airborne means, except in emergencies involving public safety or serious property loss, or pursuant to the terms and conditions of a permit’ is illegal.
The NPS emphasizes that the regulation applies to drones of all shapes and sizes.
Yosemite, the agency notes, has experienced an increase in visitors using drones within park boundaries over the last few years. The NPS claims that the noise produced by UAS can impact the natural soundscape and create an environment that is not conducive to wilderness travel.
In addition, the NPS contends that drones interfere with emergency rescue operations and can have negative impacts on nearby wildlife, especially sensitive nesting peregrine falcons on cliff walls.
According to a CNN article, the UAS prohibition at Yosemite applies to the entire national park system.