An official website of the United States Government
Official websites use .gov or .mil
A .gov or .mil website belongs to an official government organization in the United States.
Secure .gov or .mil websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov or .mil website. Share sensitive information only on official, secure websites.
Performing the Duties of Under Secretary of Defense for Acquisition and Sustainment & Principal Deputy Assistant Secretary of Defense for Sustainment
Mr. Steven J. Morani, a member of the Senior Executive Service, is performing the duties of Under Secretary of Defense for Acquisition and Sustainment (USD(A&S)). In this role, he is responsible to the Secretary of Defense for all matters pertaining to acquisition; contract administration; logistics and materiel readiness; installations and environment; operational energy; nuclear, chemical, and biological defense; the acquisition workforce; and the defense industrial base. He assumed his current position in January 2025.
Mr. Morani is concurrently serving as the Acting Assistant Secretary of Defense for Sustainment. In this capacity he provided oversight of the Department’s $190 billion sustainment enterprise. His portfolio included maintenance, supply, distribution, international logistics, weapon system product support, and logistics workforce development.
Mr. Morani previously served as the Principal Deputy Assistant Secretary of Defense for Sustainment, the principal advisor to the Assistant Secretary of Defense for Sustainment.
Mr. Morani is a retired U.S. Air Force Colonel with 28 years of military service. He entered federal civilian service in June 2011.
