Regulation 12 Crew and passengers
(1)
Every member of the crew of, and every passenger in or on a submersible craft, subject to the provisions of regulation 2(3) shall—
(a)
obey the orders of the pilot;
(b)
observe all safety precautions; and
(c)
be conversant with emergency procedures.
(2)
Every member of the crew shall unless holding a current medical certificate issued pursuant to the relevant Diving Operations Regulations hold a current medical certificate issued not more than 12 months previously by an approved doctor certifying that he is fit to participate in a submersible operation.