22 C.F.R. § 92.10
If the notarizing officer has reason to believe that material statements in a document presented for notarization are false, and if no basis exists for refusing the notarial service in accordance with § 92.9 , he may consider the advisability of informing the applicant that he will perform the service only with a specific waiver of responsibility included in the notarial certificate. Furthermore, a notarizing officer may, in his discretion, add to the specific waiver in the notarial certificate a statement of verifiable facts known to him, which will reveal the falsity of material in the document. However, normally a notarizing officer shall exercise great caution not to limit the general privilege of a United States citizen while abroad to execute under oath any statement he sees fit to make, including mistaken, unnecessary, and even frivolous statements: Provided, That substantial and compelling reasons do not exist which impel restraining action on the part of the notarizing officer. On the other hand, experience has shown the desirability of including, as standard practice, a specific waiver of responsibility in all authentications (§ 92.38 ) executed in connection with divorce proceedings.
22 C.F.R. §92.10