Me. Rev. Stat. tit. 5, § 8064

Except for emergency rules as provided in section 8060, subsection 6, an agency may not adopt any rule unless the agency has complied with the provisions in sections 8053‑A and 8060, which include legislative review of the rule. When an agency proposes a rule not in its current regulatory agenda, the agency must file an amendment to its agenda with the Legislature and Secretary of State under section 8053‑A at the time of rule proposal.