Michigan Compiled Laws, Chapter 333. Health § 333.25201

Sec. 25201. (1) Where a section of this code authorizes or directs the promulgation of rules, including rules fixing fees, but rules dealing with the subject matter do not exist when the section takes effect, a statutory provision covering the matter, which is repealed by this code, shall nevertheless continue in effect until rules covering the matter take effect or for 3 years, whichever is sooner.

(2) Rules in effect on the effective date of this code shall continue to the extent that they do not conflict with this code, and shall be considered as rules promulgated under this code.

(3) An agency which is required to promulgate rules under this code shall submit the proposed rules to public hearing within 2 years after the effective date of this code.

(4) Rules and regulations adopted by a district or county board of health which are in effect on the effective date prescribed in section 25211  1 continue to the extent that they do not conflict with this code, and are considered as local health department regulations promulgated under this code.

(5) On the date this code is enacted into law procedures for the nomination and appointment of members of agencies created or continued by this code may be commenced, but the appointments shall not take effect before the effective date of the section providing for the appointment.