Recently, the Commonwealth Court of Pennsylvania gave policyholders another victory in the continuing battle with insurers over application of the “multiple trigger” doctrine.  In Pennsylvania Manufacturers’ Association Insurance Co. v. Johnson Matthey, Inc., the Commonwealth Court held that the multiple-trigger approach – which expands the number of policies potentially available to provide coverage for long-tail liabilities – can be applied to claims involving environmental contamination, rejecting another attempt by the insurance industry to limit application…