California Code, Penal Code - PEN § 1208.3

(c)(1) That the prisoner is covered under an appropriate or suitable workers' compensation insurance plan as may otherwise be required by law.

(2) The purpose of the verification shall be solely to ensure that the prisoner's employment rights are being protected, that the prisoner is not being taken advantage of, that the job is suitable for the prisoner, and that the prisoner is making every reasonable effort to make a productive contribution to the community.