Michigan major digital infrastructure act (HB 6389, MI)

Prohibits local government units from granting approval for data centers until they make a classification determination for the project. Project must apply for classification determination, which is to be based on factors including: compute load, area used for data center operations, total area, use of public infrastructure and utilities. Four classifications for large data centers defined; for the three highest-impact categories, special permits, public hearing, and written findings regarding impacts are required.