48 CFR § 23.001 - 23.001 Definitions.

---
identifier: "/us/cfr/t48/s23.001"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "48 CFR § 23.001 - 23.001   Definitions."
title_number: 48
title_name: "Federal Acquisition Regulations System"
section_number: "23.001"
section_name: "23.001   Definitions."
chapter_number: 1
chapter_name: "FEDERAL ACQUISITION REGULATION"
subchapter_number: "D"
subchapter_name: "SOCIOECONOMIC PROGRAMS"
part_number: "23"
part_name: "ENVIRONMENT, SUSTAINABLE ACQUISITION, AND MATERIAL SAFETY"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "41 U.S.C. 1121(b); 40 U.S.C. 121(c); 10 U.S.C. chapter 4 and 10 U.S.C. chapter 137 legacy provisions (see 10 U.S.C. 3016); and 51 U.S.C. 20113."
regulatory_source: "48 FR 42275, Sept. 19, 1983, unless otherwise noted."
cfr_part: "23"
---


# 23.001 23.001   Definitions.

As used in this part—

*Environmental* means environmental aspects of internal agency operations and activities, including those aspects related to energy and transportation functions.

*Greenhouse gas* means carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, nitrogen trifluoride, or sulfur hexafluoride.

*Toxic chemical* means a chemical or chemical category listed in 40 CFR 372.65.

[76 FR 31399, May 31, 2011, as amended at 81 FR 83096, Nov. 18, 2016; 89 FR 30238, Apr. 22, 2024]