Michigan Compiled Laws, Chapter 483. Oil, Gas and Brine Lines § 483.152

Sec. 2. (1) The commission shall promulgate rules and prescribe safety standards for pipeline facilities and the transportation of gas in accordance with the administrative procedures act of 1969, Act No. 306 of the Public Acts of 1969, being sections 24.201 to 24.328 of the Michigan Compiled Laws. In prescribing safety standards, the commission shall consider:

(2) If a person engaged in the transportation of gas or the operation of pipeline facilities applies, the commission, after notice and opportunity for a hearing and under the terms and conditions and to the extent the commission considers appropriate, may waive, in whole or in part, compliance with any standard established under this act, if the waiver is not inconsistent with gas pipeline safety. At the time of issuing the waiver, the commission shall state the reasons for its issuance.