Federal Register Notices related to Transportation, Air Pollution, and Climate Change

• Press Releases
• Federal Registers
• Recent Additions

April 2026

• April 1, 2026: Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025 Cellulosic Biofuel Volume Requirement, and Other Changes (pdf) (4.8 MB)

February 2026

• February 20, 2026: Notice of Request for Information: Development of Guidance for Alternative Fuel Vehicles and Fueling Infrastructure Deployment Under the Clean School Bus Funding Programs (pdf) (227 KB)
• February 18, 2026: Final Rule: Rescission of the Greenhouse Gas Endangerment Finding and Motor Vehicle Greenhouse Gas Emission Standards Under the Clean Air Act (pdf) (1.88 MB)
• February 4, 2026: Notice of Reinstatement of the Gasoline Volatility Waiver for Ohio (pdf) (217 KB)

January 2026

• January 29, 2026: Agency Information Collection Activities; Submission to the Office of Management and Budget for Review and Approval; Comment Request; Control of Air Pollution From Motor Vehicles: Tier 3 Motor Vehicle Emission Standards (Renewal) (pdf) (206 KB)