Mich. Comp. Laws § 460.501: Certificate of convenience and necessity; definition.

Sec. 1.

The term "municipality", when used in this act, means a city, village or township.

The term "public utility", when used in this act, means persons and corporations, other than municipal corporations, or their lessees, trustees and receivers now or hereafter owning or operating in this state equipment or facilities for producing, generating, transmitting, delivering or furnishing gas or electricity for the production of light, heat or power to or for the public for compensation.

The term "commission", when used in this act, means the Michigan public utilities commission or such other state governmental agency as may exercise the powers now conferred upon said commission.