(a) This subsection applies to unpriced change orders with an estimated value exceeding $5 million.

(b) Unpriced change orders for foreign military sales and special access programs are not subject to this subsection, but the contracting officer shall apply the policy and procedures to them to the maximum extent practicable. If the contracting officer determines that it is impracticable to adhere to the policy and procedures of this subsection for an unpriced change order for a foreign military sale or a special access program, the contracting officer shall provide prior notice, through agency channels, to the Deputy Director, Defense Procurement and Acquisition Policy (Contract Policy and International Contracting), 3060 Defense Pentagon, Washington, DC 20301-3060.