49 CFR §1104.5

1. (a)An affirmation will be accepted in lieu of an oath.
2. (b)Whenever any rule of this Board requires or permits matter to be supported, evidenced, established, or proved by sworn declaration, verification, certificate, statement, oath, or affidavit, in writing of the person making the same (other than a deposition, oath of office, or an oath required to be taken before a special official other than a notary public), such matter may, with like force and effect, be supported, evidenced, established, or proven by the unsworn declaration, certificate, verification, or statement, in writing of such person which is subscribed by him, as true under penalty of perjury and dated, in the following form:
3. (c)Knowing and willful misstatements or omissions of material facts constitute federal criminal violations punishable under 18 U.S.C. 1001. Additionally, these misstatements are punishable as perjury under 18 U.S.C. 1621.