WTO notification · TBT
United StatesAdopted, according to its latest notice
Official title
Federal Motor Vehicle Safety Standards No. 304, Compressed Natural Gas Fuel Container Integrity
The United States issued an addendum on 5 June 2026 to the earlier TBT notification G/TBT/N/USA/1498. Addenda often report that a measure was adopted, changed, postponed or withdrawn. The measure was first notified on 28 June 2019. The comment period closed on 29 July 2025.
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Compressed natural gas fuel container; Vessels and containers mounted on vehicles
Latest notice (G/TBT/N/USA/1498/Rev.1/Add.1, 5 June 2026)
The latest notice says the measure was adopted or published.
Federal Motor Vehicle Safety Standards No. 304, Compressed Natural Gas Fuel Container Integrity
On 30 May 2025, the National Highway Traffic Safety Administration (NHTSA) published a notice of proposed rulemaking (NPRM) (notified as G/TBT/N/USA/1498/Rev.1) proposing to remove obsolete text in Federal Motor Vehicle Safety Standard (FMVSS) No. 304, ''Compressed Natural Gas Fuel Container Integrity.'' The agency received no comment on the proposed changes to FMVSS No. 304, and therefore the agency is adopting the changes in this final rule. Effective date: 6 July 2026. Petitions for Reconsideration: If you wish to petition for reconsideration of this rule, your petition must be received by 20 July 2026. 91 Federal Register (FR) 33105, 3 June 2026; Title 49 Code of Federal Regulations (CFR) Parts 571: This final rule and the notice of proposed rulemaking notified as G/TBT/N/USA/1498/Rev.1 are identified by Docket Number NHTSA-2025-0044. The Docket Folder is available on Regulations.gov at and provides access to primary documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number. WTO Members and their stakeholders interested in petitioning for reconsideration of this final rule are asked to submit comments to the USA TBT Enquiry Point by or before 4pm Eastern Time on 20 July 2026. Comments concerning petitions for reconsideration received by the USA TBT Enquiry Point from WTO Members and their stakeholders will be shared with NHTSA.
Notice of proposed rulemaking - The National Highway Traffic Safety Administration (NHTSA) is proposing to remove obsolete directives from the phase-in reporting requirements in Federal Motor Vehicle Safety Standard (FMVSS) No. 304.
Every notice about this measure published here, newest first. Each one is the notifying member's own text.
AddendumG/TBT/N/USA/1498/Rev.1/Add.1
Federal Motor Vehicle Safety Standards No. 304, Compressed Natural Gas Fuel Container Integrity
On 30 May 2025, the National Highway Traffic Safety Administration (NHTSA) published a notice of proposed rulemaking (NPRM) (notified as G/TBT/N/USA/1498/Rev.1) proposing to remove obsolete text in Federal Motor Vehicle Safety Standard (FMVSS) No. 304, ''Compressed Natural Gas Fuel Container Integrity.'' The agency received no comment on the proposed changes to FMVSS No. 304, and therefore the agency is adopting the changes in this final rule. Effective date: 6 July 2026. Petitions for Reconsideration: If you wish to petition for reconsideration of this rule, your petition must be received by 20 July 2026. 91 Federal Register (FR) 33105, 3 June 2026; Title 49 Code of Federal Regulations (CFR) Parts 571: This final rule and the notice of proposed rulemaking notified as G/TBT/N/USA/1498/Rev.1 are identified by Docket Number NHTSA-2025-0044. The Docket Folder is available on Regulations.gov at and provides access to primary documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number. WTO Members and their stakeholders interested in petitioning for reconsideration of this final rule are asked to submit comments to the USA TBT Enquiry Point by or before 4pm Eastern Time on 20 July 2026. Comments concerning petitions for reconsideration received by the USA TBT Enquiry Point from WTO Members and their stakeholders will be shared with NHTSA.
RevisionG/TBT/N/USA/1498/Rev.1
Comment deadline: Closed on 29 July 2025
Federal Motor Vehicle Safety Standards No. 304, Compressed Natural Gas Fuel Container Integrity
Notice of proposed rulemaking - The National Highway Traffic Safety Administration (NHTSA) is proposing to remove obsolete directives from the phase-in reporting requirements in Federal Motor Vehicle Safety Standard (FMVSS) No. 304.
AddendumG/TBT/N/USA/1498/Add.1
Federal Motor Vehicle Safety Standards; Compressed Natural Gas Fuel Container Integrity
Federal Motor Vehicle Safety Standards; Compressed Natural Gas Fuel Container Integrity AGENCY: National Highway Traffic Safety Administration (NHTSA), Department of Transportation (DOT) ACTION: Final rule SUMMARY: This final rule amends the visual inspection labeling requirement in Federal Motor Vehicle Safety Standard (FMVSS) No. 304, 'Compressed natural gas fuel container integrity,' by modifying the periodic inspection interval for compressed natural gas (CNG) fuel containers installed on vehicles with a gross vehicle weight rating (GVWR) greater than 4,536 kilograms (10,000 pounds). The inspection interval for these vehicles is modified from the currently-specified interval, 'at least every 36 months or 36,000 miles, which ever comes first,' to 'at least every 12 months.' For commercial operators of CNG heavy vehicles that often travel 100,000 miles per year or more, this change will eliminate the need to perform unnecessary multiple visual inspections of their vehicles' CNG fuel containers per year. NHTSA believes this final rule is equally protective of safety as the cadence of inspection required by the current rule. This rulemaking commenced in response to petitions for rulemaking from the American Trucking Associations and Natural Gas Vehicles for America. DATES: Effective date: This final rule is effective 14 March 2022. Compliance date: The compliance date for the amendments in this final rule is 14 March 2023. Optional early compliance is permitted. Petitions…
Regular notificationG/TBT/N/USA/1498
Comment deadline: Closed on 20 August 2019
Federal Motor Vehicle Safety Standards; Compressed Natural Gas Fuel Container Integrity
In response to petitions for rulemaking from the American Trucking Associations (ATA) and the Natural Gas Vehicles for America (NGVAmerica), NHTSA is proposing to amend the visual inspection labeling requirement in Federal Motor Vehicle Safety Standard (FMVSS) No. 304, 'Compressed natural gas fuel container integrity,' to state that CNG fuel containers used on heavy vehicles should be inspected at least once every 12 months. NHTSA is proposing this change because CNG heavy vehicles are typically used in high-mileage commercial fleet operations and following the current mileage-based inspection interval on the label means conducting multiple visual inspections per year. NHTSA has tentatively concluded multiple visual inspections per year based solely on mileage would not improve vehicle safety for these high-mileage CNG heavy vehicles, and could potentially reduce safety. Because the current periodic visual inspection interval is intended for light vehicles and is consistent with the operation of these vehicles, no change is proposed to the periodic visual inspection interval for CNG fuel containers on light vehicles.
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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