Section 7 of the Betting, Gaming and Lotteries Act 1963 shall have effect as if—
(a) in subsection (1)(a) thereof (which restricts the number of races on which betting may take place on any day on a dog racecourse) for the word " eight " there were substituted the word " ten "; and
(b) in subsection (2)(a) (which imposes a like restriction in respect of any special betting day) for the word " eight " there were substituted the word " ten " and for the word " sixteen" there were substituted the word " twenty ".