As of today Rival software casinos are not accepting new US players but older players can still login.

No announcement has been made but you can test this by livechat or try to create a new account.

This must be a result of the poker domains being seized by the doj such as pokerstars and fulltiltpoker

http://www.grem.net/blog/rival-casinos-no-longer-accepting-us-players/

slotocash and box24 casinos appear exempt.

Currently only bonne chance casinos not taking American players

Until we hear more here is the list of the White label Rivals



Just The White label Rivals NO US players
The white Rival casinos have ceased to accept US players.

List of Rival Casino White Labels

21 Grand Casino
Always Vegas
Bet821 Casino
Club Vegas USA
Cocoa Casino
Connect2Casino
DaVinci's Gold
Dendera Casino
Fortune Reel
Irish Luck Casino
Lion Slots Casino
Mayan Fortune Casino
Orangegamez Casino
Pantasia Online Casino
Paradise 8 Casino
Planet23 Casino
Ricardos Casino
Rockbet Casino
Royal Apollo
Ruby Royal
Sahara Sands Casino
Simon Says Casino
Slots Jackpot Casino
Slots of Fortune
Spintime
Superior Casino
SupremePlay Casino
This is Vegas
Tradition Casino
Tropica Casino
Vegas Regal Casino
Vegas Sky Casino
VegasDays Casino

I got this note yesterday.
"Temporary measure" with that said we will see what comes next.

Dear Tom

During Friday the 15th of the month there was major move by the US
authorities against the top 3 poker sites, their executives, a number of payment
processors, banks and companies, as well as assets and bank accounts in
14 countries.

Due to the aforementioned events, our group and platform provider have been advised by our legal counsels to disable registrations for new US based customers.

We would like to inform you that at this point this is considered a temporary measure, which will give our legal team, board of directors and all parties involved the required time to assess the situation.

hmm... USA detained three poker rooms last week, and this caused very serious damage to Antigua and Barbados economy, they are complaining at WTO against US, as it's already second case that US avoids compensation....