CPL training (Commercial Pilots License) is the course you need to take, in order to fly an aircraft commercially. To apply for a CPL, you need to hold a PPL with at least 150 flying hours. You also need to have completed a minimum of 25 hours dual flight instruction, which includes 10 hours of instrument instruction and 15 hours of visual flight instruction. 5 hours of the instrument instruction can be taken in a simulator and at least 5 hours of the flight instruction must have been completed in a 4-seat aircraft, with a variable-pitch prop and retractable undercarriage. You will also need to have completed a minimum of 5 hours night flight instruction, among a few other prerequisites. There are two options for CPL courses: the integrated and the modular route. Modular courses allow you to study and sit exams in your own time, which is perfect for trainees that are still working full-time. Integrated courses are full-time study courses. To pass the course, you will need to sit exams in Aircraft General Knowledge (one for airframe and systems, electrics, powerplant, emergency equipment and another for instrumentation), Performance, Operational Procedures and Principles of Flight. Find a Flight Training Organisation that offers CPL training here.