Me. Rev. Stat. tit. 10, § 1182-A

This chapter does not apply to a person, partnership, firm, association, corporation or trust, resident or nonresident, that manufactures, assembles, distributes, sells, leases, solicits or advertises the sale or lease of a motor vehicle that consists of the installation on a previously assembled truck chassis in excess of 25,000 pounds gross vehicle weight rating, as defined by Title 29‑A, section 101, subsection 26‑B, special bodies or equipment that, when installed, form an integral part of the motor vehicle and constitute a major manufacturing alteration. This exemption applies only to entities that do not franchise in the State.