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FAR and DFARS › FAR Part 23: Environment, Sustainable Acquisition, and Material Safety

FAR 23.001 Definitions.

The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.

In plain English

This section defines three terms used throughout FAR Part 23: environmental, greenhouse gas, and toxic chemical. It matters to contractors because these definitions determine how the sustainability and environmental rules in that part apply to their work.

Applies to: Contractors subject to FAR Part 23

Key terms: Environmental · Greenhouse gas · Toxic chemical

Written by AI from this section's text. A guide, not legal advice: the text below rules.

The text

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.

← 23.000 Scope of part. · 23.002 Policy. →

Rule changes for FAR Part 23

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.

FAR 23.001 Definitions · SpendQuery