The procedures, and their parameters, adopted for the various methods of intervention or performance of work are set by joint orders of the Minister for Labour and, each in their respective areas of responsibility, the ministers concerned.
Each order specifies in particular:
1° The breathing gases or gas mixtures authorised, in application of the provisions of sub-section 2 below;
2° The duration of intervention or performance of the work, taking into account the worker’s exposure;
3° The characteristics and conditions of use of the breathing apparatus;
4° The composition of the teams when, by derogation from the provisions of section 5 of this chapter, it is necessary for them to be reinforced to take into account the particular methods and conditions of intervention or performance of the work, in a hyperbaric environment;
5° Prescriptions for use applicable to manned pressurised chambers, in particular recompression chambers, saturation diving systems, therapeutic hyperbaric chambers, diving turrets, diving bubbles and hyperbaric chambers for tunnel boring machines;
6° Compression and decompression procedures and means;
7° Methods of intervention and performance of work as well as rescue procedures and conduct in the event of accidents related to exposure to hyperbaric risk.