This bill, known as the Safe Flights for Passengers and Flight Crews Act, aims to enhance safety by altering the regulatory oversight of specific air charter operations. It mandates that any passenger-carrying scheduled charter operation using an aircraft with more than nine passenger seats must be regulated under Part 121 of Title 14, Code of Federal Regulations. This shifts these operations from the less stringent Part 380 public charter rules to the same safety standards as major airlines. A "passenger-carrying scheduled charter operation" is defined as a common carriage operation for compensation where departure and arrival details are offered in advance. These new regulatory requirements will become effective 90 days after the bill's enactment , even if the Federal Aviation Administration has not yet issued specific implementing regulations.