2009 California Health and Safety Code - Section 102500-102520 :: Article 3. Foundling Registration

102500.  A certificate of finding of an unidentified live child of
less than one year of age shall be registered with the local
registrar of births and deaths by the person or institution with whom
the child is placed, within four days following the finding.

102505.  The certificate shall include the name, sex, color or race,
the date and place of finding, and the name of the person or
institution with whom the child is placed.

102510.  The person or institution with whom the child is placed
shall give the child a name; the place in which the child is found
shall be known as the legal place of birth; and the date of birth
shall be determined as closely as possible and shall be known as the
legal date of birth.

102515.  The certificate of finding shall be handled in the same
manner and shall serve all the purposes of a certificate of live
birth.

102520.  If the child is later identified and a certificate of birth
found or obtained, the fact shall be reported to the State Registrar
and he or she shall enter this upon the certificate of finding, with
citation to the certificate of birth.