NFL spokesman Greg Aiello said New Jersey Gov. Chris Christie's plan to allow sports betting at all horse-racing tracks and casinos in the state would have no effect on the league's plans to hold Super Bowl XLVIII at MetLife Stadium in February 2014.
A federal law called the Professional and Amateur Sports Protection Act limits sports betting to four states that approved it by a 1991 deadline: Nevada, Delaware, Oregon and Montana.
Christie announced his plan on Thursday, saying he expected a federal legal challenge to ensue.
The Associated Press contributed to this story.