Where it is compulsory to draw up a written prevention plan, in accordance with article R. 4512-7:
1° This plan must be made available throughout the duration of the work to the Labour Inspectorate, to the prevention officers of the social security bodies and, where applicable, to the Organisme professionnel de prévention du bâtiment et des travaux publics;
2° The head of the user company must inform the Labour Inspectorate in writing of the start of the work.