An employer who wishes to suspend the weekly rest period in application of article L. 3132-4, in the event of urgent work, shall immediately inform the labour inspector and, except in cases of force majeure, before the work begins.
He shall inform him of the circumstances justifying the suspension of the weekly rest period. It shall indicate the date and duration of this suspension and specify the number of employees to whom it applies.
Where urgent work is being carried out by a separate company, the notice from the head, director or manager of that company shall mention the date of the compensatory rest day provided for the employees.