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 This expert commentary analyzes the unpublished California Court of Appeal decision in Vaira v. Workers' Comp. App. Bd. (2007) 72 Cal. Comp. Cas. 1586, which held that any apportionment of a workers’ compensation award to age or gender, per se, is a violation of California’s anti-discrimination law as set forth in Cal. Gov. Code § 11135. Vaira is the first Court of Appeal decision that addresses the distinction between risk factors for causation of injury and causes of permanent disability.