Me. Rev. Stat. tit. 37-B, § 155

The Maine National Guard may provide services in accordance with section 181‑A, subsections 4 and 5 and section 183 for federal, state, county, regional and municipal governments and agencies and nongovernmental entities and may charge for those services. Except as provided in section 353‑A, the fees collected must first be allocated for funding the cost of providing those services, and any remaining fees may be expended only within the Military Bureau.