California Code, Civil Code - CIV § 3494.5

(a)(1) A property owner who voluntarily participates in a lead paint abatement program, and all public entities, shall be immune from liability in any lawsuit where a responsible party seeks to recover any cost associated with a lead paint abatement program from a property owner or public entity.

(2) For purposes of this subdivision, participation in a lead paint abatement program may be as limited as submission of an application to a lead paint abatement program or as extensive as completion of all activities conducted pursuant to a lead paint abatement program.

(b)(1) A property owner's participation in a lead paint abatement program shall not be evidence that the participating property is any of the following:

(2) For the purposes of this subdivision, “participation in a lead paint abatement program” means that a property has been voluntarily enrolled in a lead paint abatement program, qualifies for inspection and services, is deemed to contain actionable lead-based paint, and has been satisfactorily abated, is in the process of being satisfactorily abated, or is awaiting abatement under the lead paint abatement program.

(1) “Lead paint abatement program” means a program that satisfies both of the following:

(2) “Property owner” means the property owner as well as all agents or employees thereof acting within the course and scope of their agency or employment.

(3) “Public entities” includes the state, the Regents of the University of California, the Trustees of the California State University, a county, city, district, public authority, public agency, and any other political subdivision or public corporation in the state, including any employees or agents thereof acting within the course and scope of their employment or agency.

(4) “Responsible party” means a private party legally responsible for the inspection costs, abatement costs, or any other costs associated with a lead paint abatement program.