In undertakings and establishments where all employees without exception do not benefit from weekly rest for the whole day on Sunday, the employer shall inform the employees, by any means, of the days and hours of collective rest allocated to all or some of them:
1° On a day other than Sunday ;
2° From noon on Sunday to noon on Monday;
3° Or on Sunday afternoon, subject to compensatory rest;
4° In any other exceptional way permitted by law.
The employer shall inform the Labour Inspectorate beforehand of this information and of the arrangements for informing employees that it intends to implement.