As prescribed in 47.207-4(a)(2), insert the following clause in solicitations and contracts for transportation or for transportation-related services when the weight of shipments of freight other than household goods or office furniture is not known at the time of shipment and the contractor is responsible for determining the net weight of the shipments:
(a) The net weight of the shipment shall be determined by deducting the tare weight of the vehicle (determined by having the empty vehicle with a full tank of fuel weighed by a certified weighmaster on a certified scale) from the gross weight of the vehicle (determined by having the loaded vehicle with a full tank of fuel weighed by a certified weighmaster on a certified scale).
(b) The Contractor shall attach the original copies of the empty and loaded weight certificates to the invoice for services.
(End of clause)