6. Section 22 of the Principal Act is amended—
(a) by omitting subsection (1) and inserting the following subsection:
“(1) The Commissioner may, at the request of a licensee, approve a variation of the licence for the purpose of—
(a) reducing the number;
(b) altering the percentage pay-out applicable to specific coin denominations;
(c) altering the coin denomination; or
(d) altering the type;
of gaming machines to which the licence relates.”; and
(b) by adding at the end the following subsection:
“(5) Where the Commissioner—
(a) approves the variation of a licence for the purpose of paragraph 22 (1) (b); and
(b) specifies in the instrument of approval a period within which the variation is to be implemented;
during that period section 44 applies in respect of each relevant gaming machine the percentage pay-out of which has not been altered in accordance with the approval as if its percentage pay-out had been so altered.”.