(b) Waivers pursuant to FAR 25.702-4(a) shall be submitted via DASN(P) by email at usn.pentagon.asstsecnavrdadc.mbx.pabt@us.navy.mil with the subject “[Activity Name] FAR 25.702-4(b) Waiver—Sudan.” 5225.703 Prohibition on contracting with entities that engage in certain activities or transactions relating to Iran.