Michigan Compiled Laws, Chapter 125. Planning, Housing and Zoning § 125.4219

Sec. 219. (1) The governing body after a public hearing on the development plan or the tax increment financing plan, or both, with notice of the hearing given in accordance with section 218,  1 shall determine whether the development plan or tax increment financing plan constitutes a public purpose. If it determines that the development plan or tax increment financing plan constitutes a public purpose, it shall then approve or reject the plan, or approve it with modification, by ordinance based on the following considerations:

(2) Amendments to an approved development plan or tax increment plan must be submitted by the authority to the governing body for approval or rejection.

(3) Proposed amendments made to an approved development plan to incorporate a catalyst development project plan shall be submitted by the authority to the Michigan strategic fund for approval or rejection of that part of the plan relating to the catalyst development project. Amendments not approved or rejected under this subsection by the Michigan strategic fund within 45 days of submission for approval shall be considered approved.