Supervision of modification works
23.—(1)  When performing his duties under section 25(2) of the Act, the qualified person supervising the major modification of an amusement ride shall —
(a)carry out regular inspections to ensure that the modification works and tests are at all times carried out in accordance with —
(i)the authorised design and specifications and the authorised modification method and programme for the major modification of the amusement ride;
(ii)the conditions of the modification permit;
(iii)the requirements prescribed under regulation 7;
(iv)any quality assurance programme applied during the major modification, or manufacture of any modified component, of the amusement ride; and
(v)any direction given by the Commissioner in respect of the modification works; and
(b)where any deviation from the authorised design and specifications or the authorised modification method and programme for the major modification of the amusement ride has been approved by the Commissioner under regulation 24, ensure that the deviation is properly carried out and documented and that the conditions imposed by the Commissioner in respect of the deviation are complied with.
(2)  Upon the completion of the modification works, the qualified person referred to in paragraph (1) shall issue a certificate certifying that he supervised the modification works and as to —
(a)whether the modification works were carried out in accordance with —
(i)the authorised design and specifications and the authorised modification method and programme for the major modification of the amusement ride;
(ii)the conditions of the modification permit;
(iii)the requirements prescribed under regulation 7;
(iv)any quality assurance programme applied during the major modification, or manufacture of any modified component, of the amusement ride; and
(v)any direction given by the Commissioner in respect of the modification works; and
(b)where any deviation from the authorised design and specifications or the authorised modification method and programme for the major modification of the amusement ride had been approved by the Commissioner under regulation 24, whether the deviation was carried out in accordance with the approval under regulation 24 and whether the conditions imposed by the Commissioner in respect of the deviation were complied with.