Hazardous operation.
CFR · 2024-01-01 · US · Title 14
No person may: (a) Operate a small unmanned aircraft system in a careless or reckless manner so as to endanger the life or property of another; or (b) Allow an object to be dropped from a small unmanned aircraft in a manner that creates an undue hazard to persons or property.
official document · source cfr-2024 · id 14:§ 107.23