Michigan Compiled Laws, Chapter 324. Natural Resources and Environmental Protection § 324.32703a

Sec. 32703a. (1) If the prohibition in section 32703  1 is determined to be invalid, the waters of the state shall not be diverted unless authorized by law.

(2) When considering whether to grant legislative approval for a diversion, the legislature shall consider sections 51 and 52 of article IV of the state constitution of 1963 and whether the project serves a public purpose, whether the project will result in no material harm to the waters of the state, the public trust, or related purposes, and whether the project would result in any improvement to the waters of the state or the water dependent natural resources of the state.