Conn. Gen. Stat. § 7-232a: Information exempt from Freedom of Information Act.

A municipal utility established under this chapter, or a municipal electric or gas utility owned, leased, maintained, operated, managed or controlled by any unit of local government under the general statutes or a special act, may withhold from public disclosure under the Freedom of Information Act, as defined in section 1-200, any commercially valuable, confidential or proprietary information.