Mich. Comp. Laws § 18.1277: Expenditure for mailing letter, newsletter, report, or other publication; conditions.

Sec. 277.

A state board or commission shall not make an expenditure for mailing a letter, newsletter, report, or other publication unless 1 or more of the following is applicable:

The mailing is required by law.

The mailing is paid for by the person to whom the mailing is addressed.

The mailing is a direct response to a specific question of the person to whom the mailing is addressed.

The mailing is specifically authorized by a majority vote of a state board or commission.

The mailing is sent to an individual or entity and seeks information necessary for a state board or commission to render a decision. This subdivision does not include a questionnaire or general letter which attempts to assist in the taking of a survey.