same or higher standard;
(i) all clients, other than those referred to in paragraph (h), are
supervised by competent supervisors;
(j) all clients use diving buoyancy control devices or life jackets
and regulators fitted with a submersible pressure gauge;
(k) diving equipment is not rented out to persons who do not
possess an internationally recognized Open Water Certificate or
a certificate of equipment standard and who are not accompanied
by another person who holds a certificate of the same or higher
standard;
(l) all diving equipment used or hired by the business is in good
repair;
(m) all cylinders used by the business conform to appropriate
standards and are hydrostatically tested and are internally
inspected by visual means every 12 months by an officer or a test
center approved by the Authority;
(n) all diving cylinders used by the business are not filled unless
they are within the test period appropriate to the specifications of
the cylinders;
(o) all cylinders used by the business in air bank installations are
periodically inspected and tested as required by the
specifications of the cylinders;
(p) in static compressor installations and in mobile installations,
where possible, cylinders used by the business are filled in a
reinforced tank and immersed in circulating cold water;
(q) all diving regulators used by the business are fitted with
submersible pressure gauges for monitoring air supply;
(r) scuba cylinders are filled at a dive centre only for persons
who hold an internationally recognized Open Water Certificate
or a certificate of a higher standard;
(s) all compressors used for supply of breathing air conform to
appropriate standards;
(t) all supplies by the business of breathing air utilise filter
systems to the appropriate standards and the filters replaced and
the quality of air tested when requested by an officer of the
Authority.
(u) all air compressors and used by the business are placed in an
area offering adequate ventilation and those driven by petroleum
products have the intake in clean air;