CAIR-Chicago is a 501(c)3 not-for-profit Muslim civil rights organization registered independently in Illinois.  CAIR is the nation’s largest Muslim civil rights and advocacy group. CAIR-Chicago functions as an independent organization that sets its own strategy and goals. They work to attain equal opportunity for - and normalize the image of - Muslims in America through defending civil rights, fighting bigotry, and promoting tolerance. our Civil Rights Department provides pro bono legal services to Muslims who have faced discrimination as a result of their race, religion, or ethnicity.