A Commercial Pilot License (CPL) is a professional certification that allows a pilot to fly aircraft for payment or hire, such as charter services, cargo operations, or co-pilot roles in airlines. It requires completion of ground training, flight training with a minimum number of flying hours, and passing theoretical and practical exams along with a Class 1 medical certificate. A CPL holder is qualified to operate commercial flights under regulations but usually does not serve as a captain in major airlines without further experience. It represents the entry-level professional stage in aviation careers before progressing to higher licenses like the ATPL.