I.-Teams carrying out work in the hyperbaric environment referred to in 1° of Article R. 4461-1 are made up of at least three workers who hold the hyperbaric aptitude certificate referred to in Article R. 4461-27, between whom the following functions are divided:
1° Operator working in a hyperbaric environment;
2° Assistant operator, responsible for the working environment of the operator working in a hyperbaric environment and, in the event of an abnormal working situation, for providing assistance to this operator;
3° Supervisor, responsible for ensuring the safety of workers working in a hyperbaric environment from a suitable location subject to local atmospheric pressure and containing the means of communication, warning and rescue. In this capacity, he is responsible in particular for managing the parameters of the hyperbaric environment, communicating with the operator working in the hyperbaric environment and, in the event of an abnormal work situation, implementing the emergency resources.
II – During work in a hyperbaric environment, workers may alternate between different functions within the team, provided that they have the skills and aptitudes required in accordance with 1° of Article R. 4461-7.