The permit holder is responsible for -
(a) all costs involved in the excavation, including duties, royalties and surcharges payable to the Department of Finance: Customs and Excise; and
(b) the cost of the transportation of recovered material to the collaborating institution and the conservation thereof:
Provided that in cases where the collaborating institution has made a special request for an object that the permit holder would not otherwise have recovered, the institution will be responsible for any additional costs involved.