Title 10, Armed ForcesRelease 119-102

§128 Control and Physical Protection of Special Nuclear Material: Limitation on Dissemination of Unclassified Information

Title 10 › Subtitle A — General Military Law › PART I — ORGANIZATION AND GENERAL MILITARY POWERS › CHAPTER 3 — GENERAL POWERS AND FUNCTIONS › § 128

Last updated Aug 21, 2026|Official source

Summary

The Secretary of Defense must make rules or issue orders, after public notice and a chance for comment and subject to 5 U.S.C. 552(b)(3), to stop unauthorized sharing of unclassified information about security measures (like plans, procedures, and equipment) that protect special nuclear material. The Secretary can only block information if they find that sharing it could reasonably be expected to cause a significant harm to public health or to the nation’s defense by greatly increasing the chance of illegal production of nuclear weapons or the theft, diversion, or sabotage of nuclear materials, equipment, or facilities. The Secretary may consider what would happen if the information had never been available, must use the least restriction needed, cannot withhold information from the appropriate Congressional committees, and the Secretary’s decisions can be reviewed by the courts under 5 U.S.C. 552(a)(4)(B). Information given to a state or local government that is barred from being shared stays under Department of Defense control and local disclosure laws do not apply.

Full Legal Text

Title 10, §128

Armed Forces, Source: USLM XML via OLRC

(a)(1)In addition to any other authority or requirement regarding protection from dissemination of information, and subject to section 552(b)(3) of title 5, the Secretary of Defense, with respect to special nuclear materials, shall prescribe such regulations, after notice and opportunity for public comment thereon, or issue such orders as may be necessary to prohibit the unauthorized dissemination of unclassified information pertaining to security measures, including security plans, procedures, and equipment for the physical protection of special nuclear material.
(2)The Secretary may prescribe regulations or issue orders under paragraph (1) to prohibit the dissemination of any information described in such paragraph only if and to the extent that the Secretary determines that the unauthorized dissemination of such information could reasonably be expected to have a significant adverse effect on the health and safety of the public or the common defense and security by significantly increasing the likelihood of—
(A)illegal production of nuclear weapons, or
(B)theft, diversion, or sabotage of special nuclear materials, equipment, or facilities.
(3)In making a determination under paragraph (2), the Secretary may consider what the likelihood of an illegal production, theft, diversion, or sabotage referred to in such paragraph would be if the information proposed to be prohibited from dissemination under this section were at no time available for dissemination.
(4)The Secretary shall exercise his authority under this subsection to prohibit the dissemination of any information described in paragraph (1)—
(A)so as to apply the minimum restrictions needed to protect the health and safety of the public or the common defense and security; and
(B)upon a determination that the unauthorized dissemination of such information could reasonably be expected to result in a significant adverse effect on the health and safety of the public or the common defense and security by significantly increasing the likelihood of—
(i)illegal production of nuclear weapons, or
(ii)theft, diversion, or sabotage of nuclear materials, equipment, or facilities.
(b)Nothing in this section shall be construed to authorize the Secretary to withhold, or to authorize the withholding of, information from the appropriate committees of the Congress.
(c)Any determination by the Secretary concerning the applicability of this section shall be subject to judicial review pursuant to section 552(a)(4)(B) of title 5.
(d)Information that the Secretary prohibits to be disseminated pursuant to subsection (a) that is provided to a State or local government shall remain under the control of the Department of Defense, and a State or local law authorizing or requiring a State or local government to disclose such information shall not apply to such information.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Prior Provisions

A prior section 128 was renumbered section 421 of this title.

Amendments

2016—Pub. L. 114–328, § 1662(a)(2), substituted “Control and physical protection” for “Physical protection” in section catchline. Subsec. (d). Pub. L. 114–328, § 1662(a)(1), added subsec. (d). 2003—Subsec. (d). Pub. L. 108–136 struck out subsec. (d) which required the Secretary to prepare an annual report detailing the Secretary’s application during the year of each regulation or order prescribed or issued under this section. 1990—Subsec. (d). Pub. L. 101–510 substituted “on an annual basis” for “on a quarterly basis”.

Reference

Citations & Metadata

Citation

10 U.S.C. § 128

Title 10, Armed Forces

Last Updated

Aug 21, 2026

Release point: 119-102