Section 643.
Cal. Evidence Code - EVID § 643.
in effectA deed or will or other writing purporting to create, terminate, or affect an interest in real or personal property is presumed to be authentic if it:
(a)
Is at least 30 years old;
(b)
Is in such condition as to create no suspicion concerning its authenticity;
(c)
Was kept, or if found was found, in a place where such writing, if authentic, would be likely to be kept or found; and
(d)
Has been generally acted upon as authentic by persons having an interest in the matter.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026