http://www.legislation.gov.uk/uksi/2005/2776/article/2/made

The Gaming Act 1968 (Variation of Monetary Limits) Order 2005

Gambling and lotteries

Gambling and lottery licences

King's Printer of Acts of Parliament

2016-09-29

BETTING, GAMING AND LOTTERIES

This Order specifies the maximum amount of the charge for play for a machine to which section 31 of the Gaming Act 1968 Act applies. Section 31 governs machines to which Part 3 of that Act applies (commonly known as “fruit machines” or “slot machines”) where used for gaming, either on premises licensed under that Act or on premises used by a club or miners' welfare institute registered under Part 2 or 3 of the Act. Where such a machine is made available for gaming on such premises it is commonly referred to as a jackpot gaming machine.