Government Code § 8201.

(a) Every person appointed as notary public shall meet all of the following requirements:
   (1) Be at the time of appointment a legal resident of this state, except as otherwise provided in Section 8203.1.
   (2) Be not less than 18 years of age.
   (3) For appointments made on or after July 1, 2005, have satisfactorily completed a six-hour course of study approved by the Secretary of State pursuant to Section 8201.2 concerning the functions and duties of a notary public.
   (4) Have satisfactorily completed a written examination prescribed by the Secretary of State to determine the fitness of the person to exercise the functions and duties of the office of notary public. All questions shall be based on the law of this state as set forth in the booklet of the laws of California relating to notaries public distributed by the Secretary of State.
   (b) (1) Commencing July 1, 2005, each applicant for notary public shall provide satisfactory proof that he or she has completed the course of study required pursuant to paragraph (3) of subdivision (a) prior to approval of his or her appointment as a notary public by the Secretary of State.
   (2) Commencing July 1, 2005, an applicant for notary public who holds a California notary public commission, and who has satisfactorily completed the six-hour course of study required pursuant to paragraph (1) at least one time, shall provide satisfactory proof when applying for reappointment as a notary public that he or she has satisfactorily completed a three-hour refresher course of study prior to reappointment as a notary public by the Secretary of State.