Under Secretary of Defense for Acquisition and Sustainment (USD(A&S)) Memorandum: Updates the Contracting Officer Warranting Program Model to align with the Back-to-Basics acquisition workforce talent management framework and the DoD Contracting Professional Certification program, effective February 1, 2022. The updated guidance supersedes the Contracting Officer Warranting Program policy issued by the Director, Defense Procurement and Acquisition Policy on February 10, 2012.