Code of Federal Regulations Title 48. Federal Acquisition Regulations System 48.511.603 Procedures

(1) The appropriate priority rating symbol (i.e., either “DO” or “DX”) along with the program identification symbol. When GSA contracting officers place DO rated orders, they must use program identification symbol “K1”. When placing a DX–rated order for other agencies, GSA contracting officers must use the requesting agency program identification symbol from the DoD Master Urgency List and may only do so when GSA is acting as the procuring agent for DoD or DoE and has received a “DX” rated contract or order from either department.

(2) A required delivery date. The words “as soon as possible” or “immediately” do not constitute a required delivery date. Use of either a specific date or a specified number of days ARO (after receipt of order) is acceptable.

(3) The written signature on a manually placed order, or the digital signature or name on an electronically placed order of an individual authorized to place rated orders.

(4) A statement that reads substantially as follows:  “This is a rated order certified for national defense use, and you are required to follow all the provisions of the Defense Priorities and Allocations System regulation (15 CFR part 700)”.