California Code, Health and Safety Code - HSC § 8018

An agency or museum that repatriates human remains and cultural items in good faith pursuant to this chapter is not liable for claims by an aggrieved party or for claims of breach of a fiduciary duty or the public trust or of violation of state law that are inconsistent with this chapter. No action shall be brought on behalf of the state or any other entity or person for damages or for injunctive relief for a claim of improper disposition of human remains or cultural items if the agency or museum has complied with the provisions of this chapter.