a provision in the insurance agreement concluded in the proportional liability system which gives exemption from using the principle of proportion if the level of underinsurance does not exceed a pre-defined level, usually 10-15% of the declared insurance sum; Leeway clauses are used to protect the client against small errors in calculation of the value of insured property.

the operation of determining the facts, and after the occurrence of the injury, documentation of damage and the valuation of the losses