Massachusetts General Laws Part IV. Crimes, Punishments and Proceedings in Criminal Cases (Ch. 263-280) Ch. 268, § 1A

No written statement required by law shall be required to be verified by oath or affirmation before a magistrate if it contains or is verified by a written declaration that it is made under the penalties of perjury. Whoever signs and issues such a written statement containing or verified by such a written declaration shall be guilty of perjury and subject to the penalties thereof if such statement is wilfully false in a material matter.