http://www.gambling-law-us.com/Federal-Laws/internet-gambling-ban.htm
if its us gambling they are worried about..
thing is if the game isnt US based then the US doesnt goven over it, they players themselves have to be issued a warning that if they live in a state that does not allow internet gambling then they should not play the game as they are breaking the laws in their state maybe a button must be clicked when they pay in that says "you agree that the laws in your state or coutry do not forbid you to participate in online gambling" but honestly.. seems to defeat the point that the game is one of skill not wager ..so I have no idea, honestly, what LL is getting at by suggesting the game needs to follow US gambling rules if it is gambling then it doesnt follow TOS...smh