Mich. Admin. Code R. 340.293
Rule 3. A school district providing any of these auxiliary services shall notify in writing, no later than April 1 of each school year, each of the nonpublic schools within its district as to the nature and extent of such services as contained in its proposed budget. Within 30 days after receipt of such notice, nonpublic schools shall in writing notify the district as to the services that will be needed for nonpublic schoolchildren. A school district shall confirm in writing no later than August 1 of each school year to each of the nonpublic schools within its district the nature and extent of such services as contained in its final budget as adopted by the school district board of education. Notification for the 1965-66 school year shall be made as soon as possible after the effective date of these rules.
Mich. Admin. Code R. 340.293