Regulation (EU) 2018/395

Before commencing the flight, the pilot-in-command shall be familiar with the available meteorological and aeronautical information appropriate to the intended flight which includes both of the following:

1. a study of available current weather reports and forecasts;
2. the planning of an alternative course of action to provide for the eventuality that the flight cannot be completed as planned.

BOP.BAS.135 Smoking on board