Hunton Insurance Recovery Blog

Earlier this month, the California Supreme Court agreed to review Montrose Chemical Corporation’s appeal from a September appellate court ruling that rejected Montrose’s preferred “vertical exhaustion” method of exhausting excess-layer policies in favor of a policy-by-policy review to determine which policies are triggered. The California high court’s grant of Montrose’s petition for review is potentially significant in clarifying the appropriate excess policy exhaustion trigger under California law, not to mention in addressing a significant insurer defense in Montrose’s longstanding coverage dispute over environmental insurance coverage, which has been winding its way through California courts for more than 25 years.