A commercial pilot may be compensated for flying. Training for the license focuses on a better understanding of aircraft systems and a higher standard of airmanship. The commercial license itself does not allow a pilot to fly in instrument meteorological conditions.
A commercial airplane pilot must be able to operate a complex airplane, as a specific number of hours of complex (or turbine-powered) aircraft time are among the prerequisites, and at least a portion of the practical examination is performed in a complex aircraft.
By itself, this license does not permit the pilot to set up an operation that carries members of the public for hire; such operations are governed by other regulations. Often, the commercial license will reduce the pilot's insurance premiums, as it is evidence of training to a higher safety standard.