The article compares UK and US slot rules, including UKGC testing and access...

https://www.play-bookmarks.win/uk-and-us-slot-rules-differ-in-testing-payouts-and-access-the-article

The article compares UK and US slot rules, including UKGC testing and access limits. A 96.5% RTP is an example, not a promise; New York allows sports betting but has no online casino market, showing how rules differ in practice.