UK and US slot rules differ in testing, access and how games are presented. The...
https://telegra.ph/Do-US-Online-Casinos-Publish-RTP-the-Same-Way-UK-Casinos-Do-11-05
UK and US slot rules differ in testing, access and how games are presented. The piece notes UKGC testing as one safeguard, while US gambling law varies by state; New York, for example, allows online sports betting but not online casino play.