Section 26-27. Proper manning and crew size

The manning must be appropriate for the work tasks to be performed, the dangers which the divers may be exposed to, and emergencies that might arise. The assessment of what is safe manning must be documented.
The diving operation must as a minimum be performed by a diving supervisor, a diver, a standby diver and a line attendant.
When there are several divers in the water, the number of line attendants must be increased correspondingly.
An exemption from the requirement in the second paragraph is made for undertakings that train recreational divers (instructors in recreational diving) and undertakings that perform recreational dive guiding. For recreational dive training and recreational dive guiding, at least two instructors or guides must be present. When two or more instructors or guides are in the water at the same time, one must be appointed diving supervisor.
An exemption from the requirement in the second paragraph is made for diving in a pool such as a swimming pool with a depth of up to six metres. In such cases, the diving operation must as a minimum be performed by one diver and one standby diver.
An exemption from the requirement in the second paragraph is made for rescue diving. For rescue diving and training in rescue diving, the diving operation must as a minimum be performed by one diving supervisor, one diver and one standby diver. For rescue diving from a helicopter, the manning may be two rescue divers when this is safe and necessary because of limited space in the helicopter. One of the rescue divers must be the diving supervisor. The line attendant function must be handled by qualified personnel in the helicopter.