Counties: County purchasing, Mich. Comp. Laws § 45.85. Other things being equal, supplies offered by bidders with established local business in county have preference.
Purchasing: Purchases of supplies, Mich. Comp. Laws § 18.1261. All other things being equal, preference given to products manufactured or services offered by Michigan-based firms.
Purchasing: Bidders for state contracts; preference, Mich. Comp. Laws § 18.1268. Application of reciprocal preference.