An employer or commercial diving school may not-
(a) Allow a person to:
(i) For commercial scuba, dive without having an alternate breathing gas supply available that is
sufficient for that person to reach a place of safety in case of an emergency; or
(ii) For air scuba, dive without the minimum plant and machinery as listed in the definition of "air scuba".
(b) commence diving operations without an emergency response plan and, in case of saturation diving
projects, a hyperbaric evacuation plan.