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Why NGV?
Environment
Vehicles
Fuel
Policy
Opportunities
Resource Center
Grants and Incentives
Vehicle Availability
Transition your Fleet
Technical Documents
Cold Weather Reminder and PRD Vent System Inspection Notice for GFVs
October 15, 2025
Potential Impacts on NGVs from Introducing Hydrogen in NGV Fuel Supplies
September 8, 2025
NGV/HGV Codes and Standards Listing
July 30, 2025
2023 NGVAmerica Technology Bulletin Cold Weather PRDs Best Practices
November 7, 2023
2022 NGVAmerica Technology Bulletin Cold Weather PRDs Best Practices
October 19, 2022
Documentation Guide for Vehicle Incident Investigations Involving LNG
February 24, 2022
Documentation Guide for Vehicle Incident Investigations Involving CNG
February 24, 2022
LNG Regulatory Oversight References and Guidelines
February 3, 2021
Natural Gas Vehicle Weight Allowance Guidance – 23 USC 127(s)
January 3, 2020
Updated FHWA Guidance on NGV Weight Allowance
November 5, 2019
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Nominations Open for 2026 TTP Achievement Awards
March 11, 2026
Registration Open for The Transport Project’s 2026 Industry Summit
March 4, 2026
TTP Hires Regulatory Policy Expert to Build Upon Recent Federal and State Successes
February 24, 2026
RNG Transportation Industry Statement on Endangerment Finding Recission and its Impact on EPA GHG Phase 3
February 12, 2026
