What happens when you have a claim arising from circumstances that unfolded over many policy years—like environmental property damage or asbestos bodily injury claims? Which policies are triggered? How much coverage does each policy provide? Unsurprisingly, insurers and policyholders disagree on the answers. And courts across the country have been grappling with the issue for decades.
Some courts apply the “all sums” approach, which allows a policyholder to recover in full—subject to policy limits—from any insurer whose policy has been “triggered.” Other courts apply the “pro rata” approach, under which each triggered insurer must pay only a portion of the loss allocated to its policy periods. This is a closely watched issue among the insurance bar as it can dramatically impact the amount of a recovery depending on the contours of the policyholder’s insurance program.