Mich. Comp. Laws § 324.3308: Written permission from bottomland owner.

Sec. 3308.

An applicant shall obtain authorization to chemically treat the proposed area of impact by obtaining written permission from each person who owns bottomlands in the area of impact. The applicant shall maintain the written permission for 1 year from the expiration date of the permit and shall make the records available to the department upon request. Written permission from each bottomland owner is not required if the applicant is providing, or has contracted to provide, chemical treatment for either of the following:

A lake board established under part 309 for the waterbody for which chemical treatment is proposed.

This state or a local unit of government acting under authority of state law to conduct lake improvement projects or to control aquatic vegetation.