A recompression chamber may be operated only by-
(a) in the case of the recompression chamber being compressed with gas other than air, a life-support
technician; or
(b) in the case of the recompression chamber being compressed with air-
(i) a class I commercial diver;
(ii) a class II commercial diver, under the supervision of a class I commercial diving supervisor or a class
II commercial diving supervisor; or
(iii) a recompression chamber operator, who operates the recompression chamber under the supervision
of (aa) a class I commercial diving supervisor;
(bb) a class II commercial diving supervisor;
(cc) a class III commercial diving supervisor also registered as a recompression chamber operator;
or
(dd) a class IV commercial diving supervisor also registered as a recompression chamber operator.
