What is the highest level of aircraft pilot certification?

While the commercial pilot license, or CPL, permits the holder to be paid as a pilot of an aircraft, the Airline Transport Pilot License, or ATPL, is the highest level of aircraft pilot certificate. This level of certification authorizes holders to serve as pilot in command on scheduled air carriers' aircraft.

Asked by Rachel Bortles · Last updated 5 years ago · 3.5K views · SOURCE