B4 gaming machines
B4 gaming machines requirements
- Maximum stake:
- Maximum prize:
- Permitted locations:
- members' club, miners’ welfare club or commercial club
- bingo premises
- adult gaming centre
- betting shops
- tracks with pool betting
- 2005 Act and 1968 Act casinos.
- Maximum number of machines - members' club, miners’ welfare club or commercial club
Up to a maximum of 3
- Maximum number of machines - bingo premises and adult gaming centre
Up to a maximum of 20% of the total number of machines available for use on the premises
- Maximum number of machines - betting shops and tracks with pool betting
Up to a maximum of 4
Any combination of categories B to D
- Maximum number of machines - 2005 Act large casino:
Up to a maximum of 150
Any combination of categories B to D - subject to a machine to table ratio 5:1
- Maximum number of machines - 2005 Act small casino:
Up to a maximum of 80
Any combination of categories B to D - subject to a machine to table ratio 2:1
- Maximum number of machines - 1968 Act casino:
Up to a maximum of 20
Any combination of categories B to D - or any number of C or D machines instead
Licences and permits required
B4 machines can only be made available in casino, betting shops, tracks with pool betting, bingo halls, adult gaming centres, members' clubs, miners’ welfare clubs or commercial clubs.
Members' clubs - for example, working men’s clubs, branches of the Royal British Legion and clubs with political ties - and Miners’ welfare institutes - as defined in the Licensing Act 2003 (opens in new tab) may site up to three machines from categories B3A, B4, C or D (only one can be B3A) with a club machine permit.
Commercial clubs may site up to three machines from categories B4, C or D (not B3A machines).
AGC and bingo premises licences granted before 13 July 2011 are entitled to make available four (for AGC) or eight (for bingo) category B3/B4 gaming machines, or 20% of the total number of gaming machines, whichever is the greater.
You must have one of the following to make them available:
- non-remote 2005 Act casino operating licence
- non-remote 1968 Act casino operating licence
- non-remote general betting standard operating licence
- non-remote pool betting operating licence
- non-remote bingo operating licence
- Adult Gaming Centre (AGC) licence
- gaming machine permit.
If you are a machine manufacturer or supplier you will need a gaming machine technical licence, which type will depend on the nature of your business.
Gaming machine technical standards
See our gaming machine technical standards (categories B3 and B4) for full details of the technical standards which this category of machine must comply with.
All gaming machines sited on casino premises must comply with our gaming machine technical standards.
Category B4, C, and D gaming machines can be tested via an independent test house or via the manufacturers own processes under strict controls. Test houses are also sometimes referred to as test labs.
For categories A, B1, B2, B3, B3A, B4, C, D, server networked and downloadable, cashless payment, linked progressives and wireless networks refer to the gaming machine testing strategy.
Return to player (RTP)
B4 machines must display the 'theoretical target percentage return to player'. RTP is an average measured over a large number of games and will vary over a typical session due to normal game volatility.
The manufacturer will decide on the game RTP.
There is no minimum RTP requirement. However, the minimum average return must be displayed to the player for the game.
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C gaming machines
Last updated: 27 August 2023
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