(New York City, NY) -- Federal authorities are accusing Chipotle of violating U.S. labor law. The National Labor Relations Board says the fast-casual Mexican food chain violated the law by allegedly firing a New York employee in retaliation after he tried to organize with a union. Local 32BJ of the Service Employees International Union is trying to organize workers at Chipotle, and the NLRB filed a complaint last week. Chipotle must respond by December 26th.