31 CFR § 10.26
Notaries
July 31, 2023
§ 10.26 Notaries.
A practitioner may not take acknowledgments, administer oaths, certify papers, or perform any official act as a notary public with respect to any matter administered by the Internal Revenue Service and for which he or she is employed as counsel, attorney, or agent, or in which he or she may be in any way interested.