California Code, Labor Code - LAB § 5410.1

Should any party to a proceeding institute proceedings to reduce the amount of permanent disability awarded to an applicant by the appeals board and be unsuccessful in such proceeding, the board may make a finding as to the amount of a reasonable attorney's fee incurred by the applicant in resisting such proceeding to reduce permanent disability benefits previously awarded by the appeals board and assess the same as costs upon the party instituting the proceeding for the reduction of permanent disability benefits.