CA Fam Code Section 9326

The prospective adoptive parent shall mail or personally serve notice of the hearing and a copy of the petition to the director of the regional center for the developmentally disabled, established pursuant to Chapter 5 (commencing with Section 4620) of Division 4.5 of the Welfare and Institutions Code, and to any living birth parents or adult children of the proposed adoptee, at least 30 days before the day of the hearing on an adoption petition in any case in which both of the following conditions exist:

(a)

The proposed adoptee is an adult with developmental disabilities.

(b)

The prospective adoptive parent is a provider of board and care, treatment, habilitation, or other services to persons with developmental disabilities or is a spouse or employee of a provider.