De-emption

Where a managing agent reduces the underwriting capacity of a syndicate, for example when it expects to write less business in future. The participations of the members of the syndicate are reduced proportionately.

Deactivate

Action taken by the Medicare administrative contractor that renders a provider’s billing number inactive or ineffective for claims processing. The provider is notified and given a reason for this situation.

Dead Weight Tonnage (DWT)

It expresses the number of tons (of 2,240 pounds) of stores, fuel and cargo that a ship can transport. It is the difference between the number of tons of water a ship displace “Light” and the number of tons it displaces when submerged to her load-line. Ship building industry usually employs this method of tonnage measurement. In countries where metric system is prevalent it refers to tones as well.

Deadheading

A trucking term that means the driving of a tractor-trailer that is empty, usually on the return trip from delivering goods. A special trucking endorsement, Truckers Insurance for Nontrucking Use, may be necessary when deadheading.