---
kind: "section"
citation: "10 U.S.C. § 6101"
title: "10"
title_heading: "Armed Forces"
number: "6101"
heading: "Definitions"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/10/6101"
units:
  - "Subtitle A — General Military Law"
  - "Part VI — Elements of Department of Defense and Other Matters"
  - "Subpart B — Atomic Energy Defense"
  - "Chapter 601 — Organizational Matters"
---

# §6101. Definitions


Except as otherwise provided, in this subpart:

- (1) The term “Administration” means the National Nuclear Security Administration.
- (2) The term “Administrator” means the Administrator for Nuclear Security.
- (3) The term “classified information” means any information that has been determined pursuant to Executive Order No. 12333 of December 4, 1981 ([50 U.S.C. 3001](/usc/50/3001.md) note), Executive Order No. 12958 of April 17, 1995 ([50 U.S.C. 3161](/usc/50/3161.md) note),[^1] Executive Order No. 13526 of December 29, 2009 ([50 U.S.C. 3161](/usc/50/3161.md) note), or successor orders, to require protection against unauthorized disclosure and that is so designated.
- (4) The terms “defense nuclear facility” and “Department of Energy defense nuclear facility” have the meaning given the term “Department of Energy defense nuclear facility” in section 318 of the Atomic Energy Act of 1954 ([42 U.S.C. 2286g](/usc/42/2286g.md)).
- (5) The term “nuclear security enterprise” means the physical [facilities](/usc/10/2700.md?p=2), technology, and human capital of the [national security laboratories](#6) and the [nuclear weapons production facilities](#8).
- (6) The term “national security laboratory” means any of the following:
  - (A) Los Alamos National Laboratory, Los Alamos, New Mexico.
  - (B) Sandia National Laboratories, Albuquerque, New Mexico, and Livermore, California.
  - (C) Lawrence Livermore National Laboratory, Livermore, California.
- (7) The term “Nuclear Weapons Council” means the Nuclear Weapons Council established by section 179.
- (8) The term “nuclear weapons production facility” means any of the following:
  - (A) The Kansas City [National Security](/usc/10/801.md?p=16) Campus, Kansas City, Missouri.
  - (B) The Pantex Plant, Amarillo, Texas.
  - (C) The Y–12 [National Security](/usc/10/801.md?p=16) Complex, Oak Ridge, Tennessee.
  - (D) The Savannah River Site, Aiken, South Carolina.
  - (E) The Nevada [National Security](/usc/10/801.md?p=16) Site, Nevada.
  - (F) Any [facility](/usc/10/2700.md?p=2) of the [Department](/usc/10/101.md?p=a-6) of Energy that the [Secretary](/usc/10/4951.md?p=3) of Energy, in consultation with the [Administrator](#2) and Congress, determines to be consistent with the mission of the [Administration](#1).
- (9) The term “Restricted Data” has the meaning given such term in section 11 y. of the Atomic Energy Act of 1954 ([42 U.S.C. 2014(y)](/usc/42/2014.md?p=y)).

## Footnotes

[^1]: See References in Text note below.

## Source credit

(Added Pub. L. 119–60, div. C, title XXXI, § 3111(a), Dec. 18, 2025, 139 Stat. 1339.)

## Notes

### Editorial Notes

### References in Text

Executive Order No. 12958, referred to in par. (3), is Ex. Ord. No. 12958, Apr. 17, 1995, 60 F.R. 19825, which was revoked by Ex. Ord. No. 13526, § 6.2(g), Dec. 29, 2009, 75 F.R. 731, and was formerly set out as a note under section 3161 of Title 50, War and National Defense.

### Prior Provisions

Provisions similar to those in this section were contained in section 2501 of Title 50, War and National Defense, prior to repeal by Pub. L. 119–60, § 3111(b)(1).