FAR and DFARS › DFARS Part 223: Environment, Sustainable Acquisition, and Material Safety › Subpart 223.5
DFARS 223.501-70 Disclosure of greenhouse gas emissions.
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 DFARS section prohibits contracting officers from requiring nontraditional defense contractors to disclose greenhouse gas inventories or other emissions reports as a condition of contract award, unless an exception or waiver applies. It also bars contracting officers from considering such information from certain annual representations and certifications for award decisions. The section implements a National Defense Authorization Act requirement and defines key terms like greenhouse gas and greenhouse gas inventory.
Applies to: Nontraditional defense contractors and contracting officers
What it requires
- Contracting officers must not require nontraditional defense contractors to disclose greenhouse gas inventories or other emissions reports as a condition of contract award, unless an exception or waiver applies.
- Contracting officers must not consider greenhouse gas emission information from specified annual representations and certifications as a condition of contract award to nontraditional defense contractors.
Key terms: Greenhouse gas · Greenhouse gas inventory · Nontraditional defense contractor · Contracting officer · Head of the contracting activity
Written by AI from this section's text. A guide, not legal advice: the text below rules.
The text
(a) Scope. This section implements section 318 of the National Defense Authorization Act for Fiscal Year 2024 (Pub. L. 118-31).
(b) Definitions. As used in this section—
Greenhouse gas means carbon dioxide, methane, nitrous oxide, nitrogen trifluoride, hydrofluorocarbons, perfluorocarbons, or sulfur hexafluoride.
Greenhouse gas inventory means, with respect to an entity or individual, a quantified list of the annual greenhouse gas emissions of the entity or individual.
(c) Prohibition. (1) Contracting officers must not require, as a condition of contract award, nontraditional defense contractors to disclose a greenhouse gas inventory or any other report on greenhouse gas emissions, unless an exception is made or a waiver is granted in accordance with paragraph (d) or (e) of this section, respectively.
(2) Contracting officers must not consider, as a condition of contract award to nontraditional defense contractors, greenhouse gas emission information that may otherwise be provided in annual representations and certifications in response to the following provisions:
(i) FAR 52.204-7, System for Award Management.
(ii) FAR 52.204-8, Annual Representations and Certifications, paragraph (c)(1)(xix), Public Disclosure of Greenhouse Gas Emissions and Reduction Goals—Representation.
(iii) FAR 52.212-3, Offeror Representations and Certifications—Commercial Products and Commercial Services, paragraph (t), Public Disclosure of Greenhouse Gas Emissions and Reduction Goals.
(iv) FAR 52.223-22, Public Disclosure of Greenhouse Gas Emissions and Reduction Goals—Representation.
(d) Exception. The prohibition at paragraph (c) of this section will not apply if a contracting official at least one level above the contracting officer determines that such disclosure is necessary to verify a voluntary disclosure of a greenhouse gas inventory or other report.
(e) Waiver. The head of the contracting activity may issue, on a contract-by-contract basis, a waiver to the prohibition at paragraph (c) of this section, provided that the information relating to greenhouse gas emissions is directly related to the performance of the contract. In issuing such a waiver, the head of the contracting activity must ensure that any such required information is clearly delineated in the contract.
← 223.501 Policy. · 223.7101 Definitions. →
Rule changes for DFARS Part 223
- Defense Federal Acquisition Regulation Supplement: Disclosure of Greenhouse Gas Emissions (DFARS Case 2024-D021) ↗ · final rule 2026-05-07 · effective 2026-05-07
- Defense Federal Acquisition Regulation Supplement: Sustainable Procurement (DFARS Case 2024-D024) ↗ · final rule 2024-08-15 · effective 2024-08-15
- Defense Federal Acquisition Regulation Supplement: Replacement of Fluorinated Aqueous Film-Forming Foam (DFARS Case 2020-D011) ↗ · final rule 2024-03-26 · effective 2024-03-26
Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.