Title 42 › CHAPTER 23 — DEVELOPMENT AND CONTROL OF ATOMIC ENERGY › SUBCHAPTER XI — CONTROL OF INFORMATION › § 2164
The President can let U.S. agencies share Restricted Data (secret nuclear information) with other countries or defense groups, but only under strict agreements. The Atomic Energy Commission may share data for peaceful uses like refining fuel, civilian reactors, making special nuclear materials, health and safety, industry uses, and related research. It cannot share information about making atomic bombs. Existing agreements on August 30, 1954, are still allowed. The Department of Defense can share Restricted Data, including design details, when needed for defense plans, training, judging enemy capabilities, or making compatible delivery systems. The President can also allow exchanges of weapon data or military reactor work if the partner country has made real progress and the sharing is needed and safe. The Department of Energy can share data for keeping track of fissile material and weapons, verifying treaties, or making classification standards, but only after the President finds it helps and does not create an unreasonable risk. All sharing must be done under an agreement made under section 2153. Other U.S. agencies may share data if the cooperation agreement allows it.
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The Public Health and Welfare, Source: USLM XML via OLRC
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42 U.S.C. § 2164
Title 42, The Public Health and Welfare
Last Updated
Sep 22, 2026
Release point: 119-110