Definitions — Us Code Code § 3451

Us Code Code § 3451 — Definitions. Reproduced from the official United States Code, with a citation summary, verification link, and related provisions.

§ 3451. Definitions

In this chapter:

(1) The terms "commercial product", "commercial service", "nondevelopmental item", "component", and "commercial component" have the meanings provided in sections 103, 103a, 110, 105, and 102, respectively, of title 41.

(2) The term "head of an agency" means the Secretary of Defense, the Secretary of Homeland Security, and the Administrator of the National Aeronautics and Space Administration.

(3) The term "agency" means the Department of Defense, the Coast Guard, and the National Aeronautics and Space Administration.

(Added Pub. L. 103–355, title VIII, §8103, Oct. 13, 1994, 108 Stat. 3390, §2376; amended Pub. L. 107–107, div. A, title X, §1048(a)(19), Dec. 28, 2001, 115 Stat. 1223; Pub. L. 107–296, title XVII, §1704(b)(1), Nov. 25, 2002, 116 Stat. 2314; Pub. L. 111–350, §5(b)(22), Jan. 4, 2011, 124 Stat. 3844; Pub. L. 115–232, div. A, title VIII, §836(d)(2), Aug. 13, 2018, 132 Stat. 1866; renumbered §3451 and amended Pub. L. 116–283, div. A, title XVIII, §1821(a)(2), (b)(1)(A), Jan. 1, 2021, 134 Stat. 4195.)


Editorial Notes

Prior Provisions

A prior section 3451, act Aug. 10, 1956, ch. 1041, 70A Stat. 197, provided that an officer who is promoted to a temporary grade is considered to have accepted his promotion on the date of the order announcing it, unless he expressly declines the promotion, prior to repeal by Pub. L. 96–513, title II, §207, title VII, §701, Dec. 12, 1980, 94 Stat. 2884, 2955, effective Sept. 15, 1981.

Amendments

2021—Pub. L. 116–283, §1821(b)(1)(A), transferred this section so as to precede section 3452 and appear at the beginning of this chapter.

Pub. L. 116–283, §1821(a)(2), renumbered section 2376 of this title as this section.

2018—Par. (1). Pub. L. 115–232 substituted "terms 'commercial product', 'commercial service'," for "terms 'commercial item'," and "sections 103, 103a, 110, 105, and 102, respectively, of title 41" for "chapter 1 of title 41".

2011—Par. (1). Pub. L. 111–350 substituted "chapter 1 of title 41" for "section 4 of the Office of Federal Procurement Policy Act (41 U.S.C. 403)".

2002—Par. (2). Pub. L. 107–296 substituted "of Homeland Security" for "of Transportation".

2001—Par. (1). Pub. L. 107–107 inserted "(41 U.S.C. 403)" after "section 4 of the Office of Federal Procurement Policy Act".


Statutory Notes and Related Subsidiaries

Effective Date of 2021 Amendment

Amendment by Pub. L. 116–283 effective Jan. 1, 2022, with additional provisions for delayed implementation and applicability of existing law, see section 1801(d) of Pub. L. 116–283, set out as a note preceding section 3001 of this title.

Effective Date of 2018 Amendment

Amendment by Pub. L. 115–232 effective Jan. 1, 2020, subject to a savings provision, see section 836(h) of Pub. L. 115–232, set out as an Effective Date of 2018 Amendment; Savings Provision note under section 453b of Title 6, Domestic Security.

Effective Date of 2002 Amendment

Amendment by Pub. L. 107–296 effective on the date of transfer of the Coast Guard to the Department of Homeland Security, see section 1704(g) of Pub. L. 107–296, set out as a note under section 101 of this title.

About This Section

10 U.S.C. § 3451 is part of Title 10 of the United States Code. The United States Code is the official codification of federal statutes maintained by the Office of the Law Revision Counsel of the U.S. House of Representatives. Congress amends the Code through new public laws, which are eventually incorporated into the relevant title.

This section may be cited in legal writing as 10 U.S.C. § 3451. For the most current official text, including any recent amendments, use the official source links below. Do not rely on this page as the sole authority for legal citation or litigation.

How to Read This Statute

Statutes are organized by title, chapter, section, and subsection. Pay attention to words like "shall," "may," "and," and "or," because they determine whether a requirement is mandatory or permissive and whether multiple conditions must all be met. Historical notes and amendments often appear at the end of a section.

Using This Page

This page is intended for research and educational use. Lawyers, students, journalists, and compliance professionals can use it as a starting point, but should always verify the current text through an official government source before relying on it for legal advice, filings, or compliance decisions.

Sources

Source: official Us Code text · Last verified 2026-08-27

At a glance

Verify the text

Statute text is transcribed from the official United States Code. Confirm it against the primary source before relying on it:

Not legal advice. Verify against the official source and consult a licensed Us Code attorney.

Common questions

What is the source of United States Code § 3451?

The text above is transcribed from the United States Code, the codified statutes of Us Code. The official publisher link appears under "Verify the text" on this page.

What subject does United States Code § 3451 address?

It addresses "Definitions". Read the section together with the surrounding provisions listed under "Nearby provisions" for the full picture.

Is United States Code § 3451 still in force?

Statutes are amended, repealed, and renumbered every session. Confirm the current version at the official Us Code source before relying on this text.

Can this page be used as legal advice?

No. This is a reference transcription for research. Applying Us Code law to your facts requires a licensed Us Code attorney who can review the specifics.