Mich. Comp. Laws § 252.131
When the department of state highways acquires real property for the construction or relocation of an interstate or trunk line highway project in a city or incorporated village which will involve the displacement from their residences of families or individuals occupying 15 or more dwelling units, the state department of highways, with the cooperation of the governing body of the city or incorporated village shall submit to the state administrative board, for its approval, a written plan for the relocation of such families and individuals in suitable housing which is deemed to be housing that is not substandard as defined in Act No. 167 of the Public Acts of 1917, as amended, being sections 125.401 to 125.519 of the Compiled Laws of 1948 or, in cases where the local unit of government has established housing standards, suitable housing shall be defined to mean housing that is not substandard according to the minimum standards of building and health codes of the respective local units of government. The plan shall include an estimate of persons to be displaced by the project, and a summary of suitable housing reasonably expected to be available to house such persons to be displaced by construction or relocation of such highways. The chief executive officer of the city or incorporated village in which the highway is to be constructed, in consultation with existing community organizations in the area, shall establish a citizens advisory council that to the maximum feasible extent is representative of the persons who are to be displaced because of a highway construction project. The department of state highways shall consult with and cooperate with the citizens advisory council regarding the procedures involved in the acquisition of homes and businesses and in the relocation and displacement of residents and businesses in the area. In preparing the plan, the department of state highways shall cooperate with a local governmental agency designated by the governing body of the city or incorporated village and may contract with such local agency or governing body for the preparation of the plan. The costs incurred in preparing the plan shall be considered as part of the cost of construction of the project.
MCL 252.131