- County Road Association of Michigan
- Organizes meetings and conferences for the discussion of relevant county road issues, maintains information and research, and offers consulting services and advice.
- MAC: Michigan Association of Counties
- An alliance of county commissioners who act as advocates for the interests of Michigan's county governments. Offers educational programs, legislative representation, local workshops, a legislative and summer conference, and publishes a MAC newspaper and commissioner directory. Includes county listings, maps, and county websites.
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