Article R4534-137 of the French Labour Code
Subject to compliance with the corresponding provisions of this section, the obligations relating to: 1° Sanitary facilities, as set out in articles R. 4228-2 to R. 4228-7 and R. 4228-10 to R. 4228-18; 2° Catering, as set out in articles R. 4228-22 to R. 4228-25, may be waived for work sites lasting no more than four months.