California Labor Codes 4065 379
§ Proposed permanent disability ratings
(a) In cases where either the employer or the employee have obtained evaluations of the employee's permanent impairment and limitations from a qualified medical evaluator under Section 4061 and either party contests the comprehensive medical evaluation of the other party, the workers' compensation judge or the appeals board shall be limited to choosing between either party's proposed permanent disability rating.
(b) The employee's permanent disability benefit awarded under paragraph (a) shall be adjusted based on the disability rating selected by the appeals board. If the appeals board chooses the permanent disability rating recommended by the employer, then the employee's permanent disability benefit award shall be reduced by the cost of the employee's comprehensive medical-legal evaluation. If the judge chooses the permanent disability rating recommended by the employee, the permanent disability benefit award shall be increased by the cost of the employer's comprehensive medical-legal evaluation.