28 U.S.C. § 1746 — Unsworn declarations under penalty of per­jury

If United States law or a lawful rule, regulation, order, or requirement requires or permits a matter to be supported or proved by a person’s written sworn declaration, verification, certificate, statement, oath, or affidavit, the person may generally use a written unsworn declaration with the same effect. This does not apply to a deposition, oath of office, or oath required before a specified official other than a notary public. The declaration must be signed as true under penalty of perjury and dated, substantially as follows: (1) Outside the United States: “I declare (or certify, verify, or state) under penalty of perjury under the laws of the United States of America that the foregoing is true and correct. Executed on (date). (Signature).” (2) Inside the United States, its territories, possessions, or commonwealths: “I declare (or certify, verify, or state) under penalty of perjury that the foregoing is true and correct. Executed on (date). (Signature).”