Considering Pennsylvania law, the Third Circuit was asked whether the insured waived "stacked" UIM benefits in subsequent policies that listed additional automobiles?  See State Auto Prop. & Cas. Ins. Co. v. Pro Design, P.C., No. 08-3006 (3rd Cir. May 12, 2009) [here].  In a result consistent with Hawai`i law, the Third Circuit held the initial

    The California Court of Appeal recently issued an important case involving coverage for continuous property damage over several policy periods.  Among its various rulings, the court held policy limits of multiple policies could be stacked.  Further, the "all sums" rule, obligating each insurer to pay the entire claim, was applicable.  See State of California v.