12.—(1) A diver shall not dive in a diving project unless he –
(a)has, subject to paragraph (2), an approved qualification which is valid for any activity he may reasonably expect to carry out while taking part in the diving project; and
(b)has a valid certificate of medical fitness to dive.
(2) Paragraph (1)(a) shall not apply to a diver who dives –
(a)as a part of training which, if successfully completed, would lead to the issue of an approved qualification;
(b)only by virtue of entering a chamber in order to provide emergency medical treatment; or
(c)as an actor or performer taking part in a live performance or the recording of a performance other than a person whose work normally involves work as a diver.
(3) Every diver engaged in a diving project shall –
(a)maintain a daily record of his diving; and
(b)keep that record in his possession for at least two years after the date of the last entry in it.
(4) Paragraphs (1)(a) and (3) shall not apply to a diver, other than a person whose work normally involves work as a diver, who dives for educational purposes in a tank or pool artificially constructed for the purpose of swimming or diving and who uses self-contained underwater breathing apparatus.