Illinois became the fourth state in the country to protect collective bargaining in its constitution. Yes. Illinois is an "employment at-will" state, meaning that an employer or employee may terminate the relationship at any time, without any reason or cause.As of April 2019, Illinois is not a righttowork state. Domestic workers are covered even if the employer only has 1 worker. It is simply that unions are permitted but that employees are not required to join the union. More info at Right-to-work law - Wikipedia. General information, zoo history, map, education program summary, animal photos and descriptions, and calendar of events. The Ticket Program is free and voluntary. General information, zoo history, map, education program summary, animal photos and descriptions, and calendar of events. Impasse procedures as set out in the Minnesota Public Employment Labor Relations Act.