Me. Rev. Stat. tit. 17, § 2872

A person may not be employed in any preschool facility in any capacity that involves the transporting of minors by means of motor vehicle if, within the preceding 6-year period prior to commencement of that employment, the person has been convicted of a violation of Title 29‑A, section 2411 or the person has been adjudicated for a juvenile crime under Title 15, section 3103, subsection 1, paragraph A for conduct that, if committed by an adult, would be considered criminal under Title 29‑A, section 2411.