ATPL: The criterion which shall be used to determine that a specific level is occupied by an aircraft shall be, (except that appropriate ATS authorities may specify a smaller criterion):
Domanda 75, Air Law - ATPL - Airline Transport Pilot license
| +/- 200 ft. |
| +/- 150 ft. |
| +/- 300 ft. |
| +/- 250 ft. |
