Pennsylvania Statutes Title 57 Pa.C.S.A. Notaries Public § 307. Identification of individual

(a) Personal knowledge.--A notarial officer has personal knowledge of the identity of an individual appearing before the notarial officer if the individual is personally known to the notarial officer through dealings sufficient to provide reasonable certainty that the individual has the identity claimed.

(b) Satisfactory evidence.--A notarial officer has satisfactory evidence of the identity of an individual appearing before the notarial officer if the notarial officer can identify the individual as set forth in any of the following paragraphs:

(c) Discretion.--A notarial officer may require an individual to provide additional information or identification credentials necessary to assure the notarial officer of the identity of the individual.