22 CFR § 92.9 - Refusals of requests for notarial services.
(a) A notarizing officer should refuse requests for notarial services, the performance of which is not authorized by treaty provisions or permitted by the laws or authorities of the country in which he is stationed. (See § 92.4(a).) Also, a notarizing officer should refuse to perform notarial acts for use in transactions which may from time to time be prohibited by law or by regulations of the United States Government such, for example, as regulations based on the “Trading With the Enemy Act of 1917,” as amended.
(b) A notarizing officer is also authorized to refuse to perform a notarial act if he had reasonable grounds for believing that the document in connection with which his notarial act is requested will be used for a purpose patently unlawful, improper or inimical to the best interests of the United States. Requests for notarial services should be refused only after the most careful deliberation.