Chicago is among a growing group of cities to adopt fair workweek ordinances and is not the first to have it challenged in court. New York City, whose law requires employers to finalize work schedules at least three weeks in advance for fast food restaurants and three days in advance for retailers, was sued last year by the International Franchise Association, the New York State Restaurant Association, and the National Restaurant Association’s legal arm, the Restaurant Law Center. They claim the city council lacks authority to enact a scheduling ordinance and should be preempted by state law. The case is pending.