---
type: "LegalText"
title: "2 U.S.C. § 172"
description: "Definitions"
jurisdiction: "us"
corpus: "united_states_code"
kind: "code_section"
title_number: 2
title_name: "THE CONGRESS"
chapter_number: "5"
chapter_name: "LIBRARY OF CONGRESS"
section: "172"
citation: "2 U.S.C. § 172"
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_usc02@119-100.zip"
source_identifier: "/us/usc/t2/s172"
source_file: "data/legal/raw/us/code/title-02/usc02.xml"
source_hash: "8b44c8b8956c301e0c58efc0d15f410659d6ba4c97f7278f31db2dc2133ce2f2"
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text_hash: "874513975d570758629fc9ab2ba14395ab66664b1d0e335a701e8dd7c538827c"
retrieved_at: "2026-07-04"
confidence: "official"
tags: ["legal", "us-code"]
---

# 2 U.S.C. § 172 - Definitions

## Text

As used in sections 171 to 175 of this title—

(1) the term Center means the Center for the Book;

(2) the term Librarian means the Librarian of Congress.

(Pub. L. 95–129, § 2, Oct. 13, 1977, 91 Stat. 1151.)