Section 324.35308 - Prohibited uses; exception(1) Except as provided in subsection (2), the following uses shall be prohibited in a critical dune area: (a) A surface drilling operation that is utilized for the purpose of exploring for or producing hydrocarbons or natural brine or for the disposal of the waste or by-products of the operation.(b) Production facilities regulated under parts 615 and 625.(2) Uses described in subsection (1) that are lawfully in existence at a site on July 5, 1989 may be continued. The continuance, completion, restoration, reconstruction, extension, or substitution of those existing uses shall be permitted upon reasonable terms prescribed by the department.Add. 1995, Act 59, Imd. Eff. 5/24/1995 .