According to JAR-OPS, on an IFR flight a commander shall not commence take-off unless the expected weather conditions at the destination and/or required alternate aerodrome(s) are at or above:
Domanda 103, Operational Procedures - ATPL - Airline Transport Pilot license
| The aerodrome operating minima, at the estimated time of arrival, and for a reasonable period before and after such a predicted time. |
| The planning minima, at the estimated time of arrival. |
| The aerodrome operating minima, during a period from 1 hour before to 1 hour after the estimated time of arrival at the aerodrome. |
| The planning minima, during a period from 1 hour before to 1 hour after the estimated time of arrival at the aerodrome. |
