California Code, Health and Safety Code - HSC § 1596.796

Notwithstanding any other provision of law, payments are not required to be made to any person who provides child care services and is exempt from the licensing requirements of this chapter, Chapter 3.5 (commencing with Section 1596.90), or Chapter 3.6 (commencing with Section 1597.30) if that person either is known to have tuberculosis, or to have been convicted of any crime involving violence against, or abuse or neglect of, children.

This section shall not be construed to create an affirmative duty on any individual, government body, or other entity paying for child care to investigate the person to whom payments are being made nor shall it be construed to create any liability for failure to investigate that person.

To the extent that this section is inconsistent with federal law, it shall be inoperative.