Cal. Fam. Code § 7822

(a) A proceeding under this part may be brought if any of the following occur:
1. (1) The child has been left without provision for the child’s identification by the child’s parent or parents.
2. (2) The child has been left by both parents or the sole parent in the care and custody of another person for a period of six months without any provision for the child’s support, or without communication from the parent or parents, with the intent on the part of the parent or parents to abandon the child.
3. (3) One parent has left the child in the care and custody of the other parent for a period of one year without any provision for the child’s support, or without communication from the parent, with the intent on the part of the parent to abandon the child.
(b) The failure to provide identification, failure to provide support, or failure to communicate is presumptive evidence of the intent to abandon. If the parent or parents have made only token efforts to support or communicate with the child, the court may declare the child abandoned by the parent or parents. In the event that a guardian has been appointed for the child, the court may still declare the child abandoned if the parent or parents have failed to communicate with or support the child within the meaning of this section.
(c) If the child has been left without provision for the child’s identification and the whereabouts of the parents are unknown, a petition may be filed after the 120th day following the discovery of the child and citation by publication may be commenced. The petition may not be heard until after the 180th day following the discovery of the child.
(d) If the parent has agreed for the child to be in the physical custody of another person or persons for adoption and has not signed an adoption placement agreement pursuant to Section 8801.3, a consent to adoption pursuant to Section 8814, or a relinquishment to a licensed adoption agency pursuant to Section 8700, evidence of the adoptive placement shall not in itself preclude the court from finding an intent on the part of that parent to abandon the child. If the parent has placed the child for adoption pursuant to Section 8801.3, consented to adoption pursuant to Section 8814, or relinquished the child to a licensed adoption agency pursuant to Section 8700, and has then either revoked the consent or rescinded the relinquishment, but has not taken reasonable action to obtain custody of the child, evidence of the adoptive placement shall not in itself preclude the court from finding an intent on the part of that parent to abandon the child.
(e) Notwithstanding subdivisions (a), (b), (c), and (d), if the parent of an Indian child has transferred physical care, custody, and control of the child to an Indian custodian, that action shall not be deemed to constitute an abandonment of the child, unless the parent manifests the intent to abandon the child by either of the following:
1. (1) Failing to resume physical care, custody, and control of the child upon the request of the Indian custodian provided that, if the Indian custodian is unable to make a request because the parent has failed to keep the Indian custodian apprised of the parent’s whereabouts and the Indian custodian has made reasonable efforts to determine the whereabouts of the parent without success, there may be evidence of intent to abandon.
2. (2) Failing to substantially comply with any obligations assumed by the parent in the agreement with the Indian custodian despite the Indian custodian’s objection to the noncompliance.