WTO notification · TBT
United StatesAdopted, according to its latest notice
Official title
Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards
The United States issued an addendum on 19 February 2026 to the earlier TBT notification G/TBT/N/USA/2229. Addenda often report that a measure was adopted, changed, postponed or withdrawn. The measure was first notified on 4 August 2025. The comment period closed on 22 September 2025.
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Motor vehicle greenhouse gas (GHG) emission standards; Road vehicle systems; Commercial vehicles; Passenger cars. Caravans and light trailers
Latest notice (G/TBT/N/USA/2229/Add.2, 19 February 2026)
The latest notice says the measure was adopted or published.
Rescission of the Greenhouse Gas Endangerment Finding and Motor Vehicle Greenhouse Gas Emission Standards Under the Clean Air Act
In this action, the U.S. Environmental Protection Agency (EPA) is rescinding the Administrator's 2009 findings of contribution and endangerment and repealing all greenhouse gas (GHG) emission standards for light-duty, medium-duty, and heavy-duty vehicles and engines to effectuate the best reading of Clean Air Act (CAA) section 202(a)(1). The EPA determines that CAA section 202(a)(1) does not authorize the Agency to prescribe emission standards in response to global climate change concerns for multiple reasons, including the best reading of the statutory terms ''air pollution,'' ''cause,'' ''contribute,'' and ''reasonably be anticipated to endanger.'' This statutory interpretation is corroborated by application of the major questions doctrine. The EPA further determines that GHG emission standards for new motor vehicles and engines do not impact in any material way the public health and welfare concerns identified in the Administrator's prior findings in 2009. On these multiple and independent bases, the EPA concludes that it lacks statutory authority to regulate GHG emissions in response to global climate change concerns under CAA section 202(a)(1), and is not finalizing the additional bases for repeal set out in the proposed rule. This final action is effective on 20 April 2026. The incorporation by reference of certain material listed in the action was approved by the Director of the Federal Register as of 27 March 2023, 17 June 2024, and 21 June 2024. 91 Federal Register…
Proposed rule - In this action, the U.S. Environmental Protection Agency (EPA) is proposing to repeal all greenhouse gas (GHG) emission standards for light-duty, medium-duty, and heavy-duty vehicles and engines to effectuate the best reading of Clean Air Act (CAA) section 202(a). We propose that CAA section 202(a) does not authorize the EPA to prescribe emission standards to address global climate change concerns and, on that basis, propose to rescind the Administrator's prior findings in 2009 that GHG emissions from new motor vehicles and engines contribute to air pollution which may endanger public health or welfare. We further propose, in the alternative, to rescind the Administrator's prior findings in 2009 because the EPA unreasonably analyzed the scientific record and because developments cast significant doubt on the reliability of the findings. Lastly, we propose to repeal all GHG emission standards on the alternative bases that no requisite technology for vehicle and engine emission control can address the global climate change concerns identified in the findings without risking greater harms to public health and welfare. The EPA is announcing a virtual public hearing to be held 19 and 20 August 2025. More information regarding the public hearing for this proposal is published in a supplemental document in the Federal Register (90 FR 36125). The hearing notice, registration information, and any updates to the hearing schedule will also be available at Please refer…
Every notice about this measure published here, newest first. Each one is the notifying member's own text.
AddendumG/TBT/N/USA/2229/Add.2
Rescission of the Greenhouse Gas Endangerment Finding and Motor Vehicle Greenhouse Gas Emission Standards Under the Clean Air Act
In this action, the U.S. Environmental Protection Agency (EPA) is rescinding the Administrator's 2009 findings of contribution and endangerment and repealing all greenhouse gas (GHG) emission standards for light-duty, medium-duty, and heavy-duty vehicles and engines to effectuate the best reading of Clean Air Act (CAA) section 202(a)(1). The EPA determines that CAA section 202(a)(1) does not authorize the Agency to prescribe emission standards in response to global climate change concerns for multiple reasons, including the best reading of the statutory terms ''air pollution,'' ''cause,'' ''contribute,'' and ''reasonably be anticipated to endanger.'' This statutory interpretation is corroborated by application of the major questions doctrine. The EPA further determines that GHG emission standards for new motor vehicles and engines do not impact in any material way the public health and welfare concerns identified in the Administrator's prior findings in 2009. On these multiple and independent bases, the EPA concludes that it lacks statutory authority to regulate GHG emissions in response to global climate change concerns under CAA section 202(a)(1), and is not finalizing the additional bases for repeal set out in the proposed rule. This final action is effective on 20 April 2026. The incorporation by reference of certain material listed in the action was approved by the Director of the Federal Register as of 27 March 2023, 17 June 2024, and 21 June 2024. 91 Federal Register…
AddendumG/TBT/N/USA/2229/Add.1
Comment deadline: Closed on 22 September 2025
Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards; Extension of Comment Period
On 1 August 2025, the Environmental Protection Agency (EPA) published a proposed rule titled ''Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards.'' (notified as G/TBT/N/USA/2229) EPA is extending the comment period for this proposed rule. The comment period for the proposed rule published on 1 August 2025, at 90 FR 36288, is extended. Comments must be received on or before 22 September 2025. 90 Federal Register (FR) 39345, 15 August 2025; Title 40 Code of Federal Regulations (CFR) Parts 85, 86, 600, 1036, 1037, and 1039: This extension of public comment period and the proposed rule notified as G/TBT/N/USA/2229 are identified by Docket Number EPA-HQ-OAR-2025-0194. The Docket Folder is available from Regulations.gov at and provides access to primary and supporting documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number. WTO Members and their stakeholders are asked to submit comments to the USA TBT Enquiry Point by or before 4pm Eastern Time on 22 September 2025. Comments received by the USA TBT Enquiry Point from WTO Members and their stakeholders will be shared with EPA and will also be submitted to the Docket on Regulations.gov if received within the comment period.
Regular notificationG/TBT/N/USA/2229
Comment deadline: Closed on 15 September 2025
Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards
Proposed rule - In this action, the U.S. Environmental Protection Agency (EPA) is proposing to repeal all greenhouse gas (GHG) emission standards for light-duty, medium-duty, and heavy-duty vehicles and engines to effectuate the best reading of Clean Air Act (CAA) section 202(a). We propose that CAA section 202(a) does not authorize the EPA to prescribe emission standards to address global climate change concerns and, on that basis, propose to rescind the Administrator's prior findings in 2009 that GHG emissions from new motor vehicles and engines contribute to air pollution which may endanger public health or welfare. We further propose, in the alternative, to rescind the Administrator's prior findings in 2009 because the EPA unreasonably analyzed the scientific record and because developments cast significant doubt on the reliability of the findings. Lastly, we propose to repeal all GHG emission standards on the alternative bases that no requisite technology for vehicle and engine emission control can address the global climate change concerns identified in the findings without risking greater harms to public health and welfare. The EPA is announcing a virtual public hearing to be held 19 and 20 August 2025. More information regarding the public hearing for this proposal is published in a supplemental document in the Federal Register (90 FR 36125). The hearing notice, registration information, and any updates to the hearing schedule will also be available at Please refer…
Expodite writes its summary from the official record. The notification and the documents it notifies are on the WTO's own websites.
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