Assistant Secretary of Defense for Science and Technology

Last updated
Assistant Secretary of Defense for Science and Technology
Flag of an U.S. Assistant Secretary of Defense.svg
Flag of an assistant secretary of defense
Incumbent
Joseph S. Jewell
since December 29, 2025 [1]
United States Department of Defense
AbbreviationASD(S&T)
Reports to Under Secretary of Defense for Research and Engineering
AppointerThe president
with Senate advice and consent
Term length Appointed
FormationJuly 24, 2023
First holder Aprille Ericsson
Salary Executive Schedule
Website Official website

The assistant secretary of defense for science and technology (ASD(S&T)) is a position in the United States Department of Defense responsible for the overall supervision of science and technology is the principal advisor to the under secretary of defense for research and engineering.

List of assistant secretaries of defense for science and technology

No.Assistant SecretaryTermRef.
PortraitNameTook officeLeft officeTerm length
Assistant Secretary of Defense for Industrial Base Policy
-
Steven G. Wax.jpg
Steven Wax
Acting		July 24, 2023March 29, 2024249 days-
1
Aprille Ericsson, DoD.jpg
Aprille Ericsson
(born 1963)		March 29, 2024January 20, 2025297 days [2]
-
Michael J. Holthe.jpg
Michael J. Holthe
Acting		January 20, 2025December 8, 2025322 days [3]
-
No image.png
Jacob Glassman
Acting		December 8, 2025December 29, 202521 days-
2
No image.png
Joseph S. Jewell December 29, 2025Incumbent9 days-

References

  1. ↑ https://www.cto.mil/leadership/
  2. ↑ https://bidenwhitehouse.archives.gov/briefing-room/statements-releases/2023/09/28/president-biden-announces-key-nominees-58/
  3. ↑ "Michael J. Holte".
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