It covers loss of revenue, loss of gross profit, or additional financing costs resulting from project delays caused by insured perils.

DSU is typically purchased alongside CAR or EAR policies, as it activates only when physical damage covered under these policies leads to a delay.

It is widely used in large-scale projects such as power plants, manufacturing facilities, refineries, and infrastructure developments.

Policies often have a time excess (waiting period) of 30 to 60 days before compensation begins, depending on project scale.