The article compares UK and US online slot rules, including testing, payouts...

https://high-wiki.win/index.php/Why_Do_UK_Casinos_Have_So_Many_Different_Slot_Themes%3F

The article compares UK and US online slot rules, including testing, payouts and access. UKGC testing sets a benchmark in Britain; US rules vary by state, and New York allows sports betting but not online casino play at this time.