Receipts for payment of the excise tax shall be in the form prescribed by the Secretary of State. They shall be issued in duplicate, and one copy shall be filed with the application at the time application is made for registration of the vehicle. <div
Me. Rev. Stat. tit. 36, § 1488
Receipts issued in duplicate
Official source: Maine Legislature. Reproduced from public-domain Maine statutes; confirm against the official source for the current text. Not legal advice.