California Code
ARTICLE 6 - Disability Retirement
Section 21170.

21170. The review by the court shall not be extended further than to determine whether the Workers’ Compensation Appeals Board acted without or in excess of its powers, or unreasonably, or whether its act was procured by fraud.

(Added by Stats. 1995, Ch. 379, Sec. 2. Effective January 1, 1996.)