For acknowledgments and jurats, a notary public is required to obtain satisfactory evidence of the signer's identity. (California Civil Code sections 1185(a) and (b), and 1189; California Government Code section 8202.)
Satisfactory evidence can be any of the following type of identification:
Paper Identification
1) These paper identification documents must be current, or have been issued within the previous five years.
An identification card or driver's license issued by the California Department of Motor Vehicles; or
A United States passport (a U.S. passport need not have a description of the named person); or
An inmate identification card issued by the California Department of Corrections and Rehabilitation, if the inmate is in custody in California state prison; or
Any form of inmate identification issued by a sheriff's department, if the inmate is in custody in a local detention facility.
Other California approved identification cards, consisting of any one of the following, that contain a serial or other identifying number, a photograph of the named person, a description of the named person, and the signature of the named person are also acceptable (California Civil Code sections 1185(b)(3) and (b)(4)):
A valid consular identification document issued by a consulate from the applicant's country of citizenship, or a valid passport from the applicant's country of citizenship;
A driver's license issued by another state or by a Canadian or Mexican public agency authorized to issue drivers' licenses;
An identification card issued by another state (this does not include an identification card issued by a Canadian or Mexican public agency);
A military identification card (some military identification cards do not contain all the required information and cannot be used as identification if all required information is not present);
An inmate identification card issued by the California Department of Corrections, if the inmate is still in custody; or
An employee identification card issued by an agency or office of a California city, a California county, a California city and county, or the State of California.
An identification card issued by a federally recognized tribal government.
2) The oath of a single credible witness (Notary public must personally know the credible witness) or;
3) The oaths of two credible witnesses (Notary public doesnt need to personally know either of them). (California Civil Code section 1185(b).)