Private pilot License (PPL) holders have the option to upgrade to other types of pilot licenses, such as a commercial pilot license (CPL) or Airline Transport Pilot License (ATPL), if they wish to pursue careers in commercial aviation or operate larger aircraft. To upgrade, PPL holders must undergo additional training and meet the experience requirements specified by the aviation authority for the desired license.
This typically involves completing the required flight training, accumulating a minimum number of flight hours, passing the relevant theoretical knowledge exams, and demonstrating proficiency in practical flight tests conducted by certified examiners. Upgrading to a CPL or ATPL opens up new career opportunities in commercial aviation and enables pilots to fly for hire or compensation, operating commercial airliners or other types of commercial aircraft.