Welcome to the website of the Office of the Under Secretary of Defense for Acquisition, Technology, and Logistics (OUSD(AT&L)). The USD(AT&L) is the principal staff assistant and advisor to the Secretary of Defense and Deputy Secretary Defense for all matters concerning acquisition, technology, and logistics.

As legislated by Congress, the primary responsibilities of the USD(AT&L) include:

1. Supervising Department of Defense acquisition


2. Establishing policies for acquisition (including procurement of goods and services, research and development, developmental testing, and contract administration) for all elements of the Department of Defense


3. Establishing policies for logistics, maintenance, and sustainment support for all elements of the Department of Defense


4. Establishing policies of the Department of Defense for maintenance of the defense industrial base of the United States.

In addition to performing the above functions, the USD(AT&L) has oversight responsibility for: military installations and their environment; operational energy plans and programs; major weapon systems; missile defense programs; space and intelligence programs; and nuclear and chemical and biological defense programs, including Nunn-Lugar programs and the nuclear forces.

To learn more about the individual components that comprise OUSD(AT&L), please visit the AT&L Offices Page.