ATPL: According with the 'Aerodrome Reference Code' the 'Code number 4' shall identify an aircraft reference field length of:
Domanda 303, Air Law - ATPL - Airline Transport Pilot license
| 1 500 m. |
| 1 600 m. |
| 1 200 m. |
| 1 800 m and over. |
| 1 500 m. |
| 1 600 m. |
| 1 200 m. |
| 1 800 m and over. |
