Restaurant owners in New Jersey are suing the state over a new indoor-smoking ban, arguing that the law discriminates against their businesses by exempting casinos from complying, Bloomberg News reported April 13.

The suit was filed by the New Jersey Restaurant Association on behalf of its 1,300 members. The group is seeking an injunction against the law, which was slated to go into effect on Friday.

A legislative analysis concluded that banning smoking in casinos would cost the state $93 million in revenues and 3,400 jobs.

The restaurant association said it would support the indoor smoking ban if it included casinos and cigar bars.