Under Secretary of Defense for Acquisition and Sustainment (USD(A&S)) Memorandum: Extends the certification completion requirement for acquisition workforce members from 24 months to 36 months, effective immediately. Please note that the DACM signed a memorandum on 01 April 2020, same title/subject as above, issuing supplemental guidance on the 12-month extension in support of the USD(A&S) directive.