California Code
ARTICLE 2 - Obligations of the Depositary
Section 1828.

1828. When a deposit is made in the name of two or more persons, deliverable or payable to either or to their survivor or survivors, such deposit or any part thereof, or increase thereof, may be delivered or paid to either of said persons or to the survivor or survivors in due course of business.

(Added by Stats. 1907, Ch. 75.)