The Federal Aviation Administration (FAA) proposes to amend regulations by removing all references to public charter operations and part 380 from the definitions of scheduled operation, on-demand operation, and supplemental operation. The FAA also proposes to amend the definitions of on-demand operation and supplemental operation by replacing language related to negotiated operations with language clarifying that for such operations the departure location, departure time, and arrival location cannot be offered in advance. The proposed rule would ensure that all public charter operations are conducted under the appropriate level of safety.