Me. Rev. Stat. tit. 20-A, § 4012

A member of the United States Armed Forces, the Maine National Guard or a public safety agency, including but not limited to a firefighter, police officer, emergency medical technician, game warden, forest ranger and park ranger, when visiting a school in that person’s official capacity may not be denied access to a publicly supported secondary school or secondary public charter school solely because that person is wearing a uniform.