An Airline Transport Pilot (ATP) is a professional pilot who holds the highest level of certification issued by the Federal Aviation Administration (FAA) in the United States. This certification allows pilots to operate commercial airliners and other large aircraft. To obtain an ATP license, candidates must meet specific requirements, including a minimum number of flight hours and passing written and practical exams. ATP pilots are responsible for ensuring the safety of passengers and crew during flights. They must have a deep understanding of aviation regulations, navigation, and aircraft systems. This certification is essential for those seeking careers with major airlines or in other commercial aviation roles.