Me. Rev. Stat. tit. 35-A, § 1511

The commission may, in an adjudicatory proceeding, suspend or revoke the authority of a public utility to provide service upon a finding that the public utility is unfit to provide safe, adequate and reliable service at rates that are just and reasonable. The commission shall provide notice and a reasonable opportunity for the public utility to comply with its obligations under this Title prior to suspending or revoking the authority of a public utility to provide service pursuant to this section. The authority granted in this section is in addition to the commission's authority under section 1321.