The Michigan Association of Counties (MAC) is an alliance of Michigan counties working to enhance county government through advocacy, shared services and education. Founded on Feb. 1, 1898, MAC is the only statewide organization dedicated to the representation of all county commissioners in Michigan. MAC is a nonpartisan, nonprofit organization that advances education, communication and cooperation among county government officials in Michigan. MAC is the counties’ voice at the state and federal level, providing legislative support on key issues affecting counties.