California Code, Family Code - FAM § 9201

(a) Except as otherwise permitted or required by statute, neither the department nor a licensed adoption agency shall release information that would identify persons who receive, or have received, adoption services.

(b) Employees of the department and licensed adoption agencies shall release to the department at Sacramento any requested information, including identifying information, for the purposes of recordkeeping and monitoring, evaluation, and regulation of the provision of adoption services.

(c) Prior to the placement of a child for adoption, the department or licensed adoption agency may, upon the written request of both a birth and a prospective adoptive parent, arrange for contact between these birth and prospective adoptive parents that may include the sharing of identifying information regarding these parents.

(d) The department and any licensed adoption agency may, upon written authorization for the release of specified information by the subject of that information, share information regarding a prospective adoptive parent or birth parent with other social service agencies, including the department, other licensed adoption agencies, counties or licensed foster family agencies for purposes of approving a resource family pursuant to subparagraph (A) of paragraph (4) of subdivision (p) of Section 16519.5 of the Welfare and Institutions Code, or providers of health care as defined in Section 56.05 of the Civil Code.

(e) Notwithstanding any other law, the department and any licensed adoption agency may furnish information relating to an adoption petition or to a child in the custody of the department or any licensed adoption agency to the juvenile court, county welfare department, public welfare agency, private welfare agency licensed by the department, provider of foster care services, potential adoptive parent, or provider of health care as defined in Section 56.05 of the Civil Code, if it is believed the child's welfare will be promoted thereby.

(f) The department and any licensed adoption agency may make adoption case records, including identifying information, available for research purposes, provided that the research will not result in the disclosure of the identity of the child or the parties to the adoption to anyone other than the entity conducting the research.