Michigan Compiled Laws, Chapter 460. Public Utilities § 460.573

Sec. 13. (1) Except as otherwise provided in this section, information obtained by the commission under this act is a public record as provided in the freedom of information act, 1976 PA 442, MCL 15.231 to 15.246.

(2) An electric utility, affiliated transmission company, or independent transmission company may designate information received from a third party that the electric utility, affiliated transmission company, or independent transmission company submits to the commission in an application for a certificate or in other documents required by the commission for purposes of certification submitted to the commission as being only for the confidential use of the commission. The commission shall notify the electric utility, affiliated transmission company, or independent transmission company of a request for public records under section 5 of the freedom of information act, 1976 PA 442, MCL 15.235, if the scope of the request includes information designated as confidential. The electric utility, affiliated transmission company, or independent transmission company has 10 days after the receipt of the notice to demonstrate to the commission that the information designated as confidential should not be disclosed because the information is a trade secret or secret process or is production, commercial, or financial information the disclosure of which would jeopardize the competitive position of the electric utility, affiliated transmission company, or independent transmission company or the person from whom the information was obtained. The commission shall not grant the request for the information if the electric utility, affiliated transmission company, or independent transmission company demonstrates to the satisfaction of the commission that the information should not be disclosed for a reason authorized in this section. If the commission makes a decision to grant a request, the information requested shall not be released until 3 days have elapsed after notice of the decision is provided to the electric utility, affiliated transmission company, or independent transmission company.

(3) If any person uses information described in subsection (1) to forecast electrical demand, the person shall structure the forecast so the third party is not identified unless the third party waives confidentiality.