Cal. Family Code § 8703

When the parental rights of a birth parent are terminated pursuant to Chapter 5 (commencing with Section 7660) of Part 3 of Division 12 or Part 4 (commencing with Section 7800) of Division 12, or pursuant to Section 366.25 or 366.26 of the Welfare and Institutions Code, the department, county adoption agency, or licensed adoption agency responsible for the adoptive placement of the child shall send a written notice to the birth parent, if the birth parent’s address is known, that contains the following statement: (a) “You are encouraged to keep the department or this agency informed of your current address in order to permit a response to any inquiry concerning medical or social history made by or on behalf of the child who was the subject of the court action terminating parental rights. (b) Section 9203 of the Family Code authorizes a person who has been adopted and who attains the age of 21 years to make a request to the State Department of Social Services, county adoption agency, or licensed adoption agency, that joined in the adoption petition, for the name and address of the adoptee’s birth parents. Indicate by checking one of the boxes below whether or not you wish your name and address to be disclosed: ( ) YES ( ) NO ( ) UNCERTAIN AT THIS TIME; WILL NOTIFY AGENCY AT LATER DATE”