Health and Safety Code § 18013.2

“Third-party entity” or “third party,” as used in this part, means an entity which is all of the following:

(a) In the business of inspecting equipment, systems, and assemblies and monitoring quality assurance programs, or analyzing plans, designs, specifications, and engineering calculations supporting design concepts.

(b) Not under the control or jurisdiction of any manufacturer or supplier for any affected industry except by contract as required and approved by the department.

(c) Making available specific information as required by the department.

(d) Approved by the department.