An acronym referring to nuclear, biological, chemical and radiological exposures, which may be defined in the reinsurance agreement, for purposes of excluding, limiting or providing reinsurance coverage.

The amount of loss sustained by an insurer after making deductions for all recoveries, salvage, and all claims upon reinsurers with specifics of the definition derived from the reinsurance agreement. Such net loss may or may not include claim expenses. As provided in the reinsurance agreement, net loss can be confined to the amount paid by the reinsured within applicable policy limits, or it can also include amounts paid by the reinsured for compensatory damages in excess of applicable policy limits because of failure of the reinsured to settle within applicable policy limits. 

The amount of insurance that a ceding company keeps for its own account and does not reinsure in any way (except in some instances for catastrophe reinsurance).

Reinsurance placed with a reinsurer that does not have authorised or equivalent status in the jurisdiction in question.