---
type: "LegalText"
title: "6 U.S.C. § 541"
description: "Definitions"
jurisdiction: "us"
corpus: "united_states_code"
kind: "code_section"
title_number: 6
title_name: "DOMESTIC SECURITY"
chapter_number: "1"
chapter_name: "HOMELAND SECURITY ORGANIZATION"
section: "541"
citation: "6 U.S.C. § 541"
status: "current"
release_point: "119-100"
release_date: "2026-06-26"
source: "official"
source_url: "https://uscode.house.gov/download/releasepoints/us/pl/119/100/xml_usc06@119-100.zip"
source_identifier: "/us/usc/t6/s541"
source_file: "data/legal/raw/us/code/title-06/usc06.xml"
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text_hash: "54d627510b4c48fc431e8e202ae57b35c435d788a65d812a3f7dae6fdbffd2e9"
retrieved_at: "2026-07-04"
confidence: "official"
tags: ["legal", "us-code"]
---

# 6 U.S.C. § 541 - Definitions

## Text

For purposes of this subchapter:

(1) The term “agency” includes any entity, organizational unit, program, or function.

(2) The term “transition period” means the 12-month period beginning on the effective date of this chapter.

(Pub. L. 107–296, title XV, § 1501, Nov. 25, 2002, 116 Stat. 2307.)

## Notes

Editorial Notes

References in TextThe effective date of this chapter, referred to in par. (2), is 60 days after Nov. 25, 2002, see section 4 of Pub. L. 107–296, set out as an Effective Date note under section 101 of this title.