These rules are made only by the CNS (national insurance company) in order to be able to contact the sick client during certain times. IT IS A GUIDLINE! Not a law. That is a big difference that Cargolux managers don`t understand. The main reason why these pilots were fired was to find some scapegoats in 2015 because of the fight betweeen management and pilots - kind of a revenge. Outcome is that court cases are still in progress for more than three years and probably can take another three years cost a fortune...