15 CFR 700.15 - Extension of priority ratings.
(a) A person must use rated orders with suppliers to obtain items needed to fill a rated order. The person must use the priority rating indicated on the customer's rated order, except as otherwise provided in this part or as directed by the Department of Commerce.
(b) The priority rating must be included on each successive order placed to obtain items needed to fill a customer's rated order. Therefore, the inclusion of the rating will continue from contractor to subcontractor to supplier throughout the entire supply chain.
(c) A person must use rated orders with suppliers to obtain items needed to fill an emergency preparedness rated order. That person must require acceptance or rejection, and transmission of that acceptance or rejection by the supplier within the time limit stated in the rated order that is being filled.