What this risk is, and why it matters
A single event can engage more than one policy, and recovery then depends on how the layers are made to respond together. Primary and excess covers, additional-insured rights under contracts, and other-insurance clauses decide which insurer pays first and whether costs are shared. For a senior executive, the exposure is twofold: failing to call on every policy that could respond, and becoming caught in inter-insurer disputes that stall payment while the underlying liability and its costs continue to mount.
Legal and regulatory framework
Coordinating multiple policies turns on contract interpretation of other-insurance, excess and additional-insured clauses, contribution principles between insurers, and the good-faith handling duties overseen by insurance regulators. Anti-stacking provisions and contractual risk-transfer terms are construed strictly. The report explains how priority-of-cover, contribution and additional-insured rules are applied in your chosen jurisdiction, including how contractual indemnities interact with insurance, without opining on a particular set of policies.
Typical scenarios and impact
Scenarios include an unclaimed additional-insured right under a supplier's policy, a primary-excess dispute over attachment, and an anti-stacking clause limiting access to multiple periods or policies. Outcomes range from full recovery across coordinated layers to gaps and delays where policies are overlooked or insurers contest priority. The financial difference can be the full value of an excess layer, and unresolved inter-insurer disputes can defer recovery on large claims by many months.
Mitigation framework and when to engage an expert
Map every potentially responsive policy at the outset, including additional-insured rights under contracts, and notify all relevant insurers promptly. Use brokers to coordinate the tower and press for orderly contribution, and coverage counsel to resolve priority, attachment and stacking disputes. Maintaining clear records of contractual risk-transfer terms ensures additional-insured and indemnity rights are asserted before, not after, the primary cover is exhausted.