6 USC § 1521 - Definitions

---
identifier: "/us/usc/t6/s1521"
source: "usc"
legal_status: "official_prima_facie"
title: "6 USC § 1521 - Definitions"
title_number: 6
title_name: "DOMESTIC SECURITY"
section_number: "1521"
section_name: "Definitions"
chapter_number: 6
chapter_name: "CYBERSECURITY"
subchapter_number: "II"
subchapter_name: "FEDERAL CYBERSECURITY ENHANCEMENT"
positive_law: false
currency: "119-84"
last_updated: "2026-04-17"
format_version: "1.1.0"
generator: "[email protected]"
source_credit: "(Pub. L. 114–113, div. N, title II, § 222, Dec. 18, 2015, 129 Stat. 2963; Pub. L. 115–278, § 2(h)(1)(D), Nov. 16, 2018, 132 Stat. 4182; Pub. L. 117–263, div. G, title LXXI, § 7143(d)(1)(A), Dec. 23, 2022, 136 Stat. 3663.)"
---


# § 1521. Definitions

In this subchapter:

**(1)** **Agency** section 3502 of title 44

The term “agency” has the meaning given the term in .

**(2)** **Agency information system** section 660 of this title

The term “agency information system” has the meaning given the term in .

**(3)** **Appropriate congressional committees** The term “appropriate congressional committees” means—

**(A)** the Committee on Homeland Security and Governmental Affairs of the Senate; and

**(B)** the Committee on Homeland Security of the House of Representatives.

**(4)** **Cybersecurity risk; information system** section 650 of this title

The terms “cybersecurity risk” and “information system” have the meanings given those terms in .

**(5)** **Director** The term “Director” means the Director of the Office of Management and Budget.

**(6)** **Intelligence community** section 3003(4) of title 50

The term “intelligence community” has the meaning given the term in .

**(7)** **National security system** section 11103 of title 40

The term “national security system” has the meaning given the term in .

**(8)** **Secretary** The term “Secretary” means the Secretary of Homeland Security.

---

**Source Credit**: (Pub. L. 114–113, div. N, title II, § 222, Dec. 18, 2015, 129 Stat. 2963; Pub. L. 115–278, § 2(h)(1)(D), Nov. 16, 2018, 132 Stat. 4182; Pub. L. 117–263, div. G, title LXXI, § 7143(d)(1)(A), Dec. 23, 2022, 136 Stat. 3663.)

## Editorial Notes

### References in Text

This subchapter, referred to in text, was in the original “this subtitle”, meaning subtitle B (§§ 221–229) of title II of div. N of , which is classified principally to this subchapter. For complete classification of subtitle B to the Code, see Tables.

### Amendments

2022—Par. (4).  substituted “” for “”.

2018—Par. (2). , substituted “” for “, as added by section 223(a)(4) of this division”.

Par. (4). , substituted “” for “, as so redesignated by section 223(a)(3) of this division”.