Offshore Petroleum and Greenhouse Gas Storage Regulations 2021
148Diving depths
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148 Diving depths
(1) The operator for a surface‑oriented diving operation, involving the use of air or mixed gas as a breathing medium, must not allow the operation to be carried out at a depth of more than 50 metres.
(2) The diving contractor for a surface‑oriented diving operation, involving the use of air or mixed gas as a breathing medium, must not allow the operation to be carried out at a depth of more than 50 metres.
(3) The operator for a diving operation that is carried out at a depth of more than 50 metres must ensure that the diving operation involves the use of—
(a) a closed diving bell and a suitable mixed gas breathing medium; or
(b) a manned submersible craft.
(4) The diving contractor for a diving operation that is carried out at a depth of more than 50 metres must ensure that the diving operation involves the use of—
(a) a closed diving bell and a suitable mixed gas breathing medium; or
(b) a manned submersible craft.
Division 6—Diving supervisors