Natural resources: sand dunes; regulation of critical dune development; revise. Amends secs. 35301, 35302, 35303, 35304, 35305, 35306, 35308, 35309, 35310, 35311, 35312, 35313, 35314, 35315, 35316, 35319, 35321, 35323 & 35324 of 1994 PA 451 (MCL 324.35301 et seq.); adds secs. 35304b & 35326 & repeals secs. 35307, 35311a, 35311b, 35317, 35320, 35322 & 35325 of 1994 PA 451 (MCL 324.35307 et seq.).

This bill updates Michigan's laws regarding the protection and management of critical sand dunes by amending and adding sections to the Natural Resources and Environmental Protection Act. It directly affects local governments, property owners, and developers by refining definitions of land use, such as what constitutes a "contour change" or a "special use project," and clarifying the roles of state and local agencies. Key provisions include establishing clearer criteria for when permits are required, defining how dune areas are identified in official maps, and ensuring that any development balances environmental preservation with economic needs. The legislation also repeals several outdated sections and adds new ones to modernize the regulatory framework for these fragile ecosystems.