Ordering activities shall establish the BPA with the schedule contractor(s) that can provide the supply or service that represents the best value. 8 5 Video Presentation Less Common Purchase Agreements.GS-35F-0068J, "Blanket Purchase Agreements,agrees to the following terms of a Blanket Purchase Agreement (BPA) exclusively with the U.S. Nuclear. Buyer must insert a clause in full and fill it out when applicable before vendor accepts BPA Call. (1) Ordering activities may establish BPAs under any schedule contract to fill repetitive needs for supplies or services. Here's an example of a Blanket Purchase Agreement.