California Code, Health and Safety Code - HSC § 1522.06

(a) Individuals who are volunteer candidates for mentoring children in foster care settings, as defined by the department, in private alternative boarding schools, or in private alternative outdoor programs, shall be subject to a criminal background investigation prior to having unsupervised contact with the children. The criminal background check shall be initiated and conducted pursuant to either Sections 1522 and 1522.1 or Section 1596.603, as applicable.Sections 1522 and 1522.1 may be utilized by a county social services agency in cooperation with, or as a component of, a licensed foster family agency.