A commission on fitness to perform the duties of a volunteer firefighter is set up within the health subdirectorate, the members of which are the doctors sitting on the advisory commission provided for in article R. 1424-27. This committee is chaired by the Chief Medical Officer. The commission may be asked for its opinion by the fire brigade doctors and by the chief medical officer on any question relating to the specific health conditions of volunteer fire brigades. The commission may call on experts. The firefighter whose situation is being examined may be heard by the commission, accompanied by one or two persons of his choice.