Improvements for Heavy-Duty Engine and Vehicle Test Procedures, and Other Technical Amendments

The Environmental Protection Agency (EPA) is amending the test procedures for heavy-duty engines and vehicles to improve accuracy and reduce testing burden. EPA is also making other regulatory amendments concerning light-duty vehicles, heavy-duty vehicles, highway motorcycles, locomotives, marine engines, other nonroad engines and vehicles, and stationary engines. These amendments affect the certification procedures for exhaust emission standards and related requirements.

Publication Date: 
Tuesday, June 29, 2021 - 4:00am

Extension of 2019 and 2020 Renewable Fuel Standard Compliance and Attest Engagement Reporting Deadlines

The Environmental Protection Agency (EPA) is finalizing modifications of certain compliance dates under the Renewable Fuel Standard (RFS) program. First, EPA is extending the RFS compliance deadline for the 2019 compliance year and the associated deadline for submission of attest engagement reports for the 2019 compliance year for small refineries. The new deadlines are November 30, 2021, and June 1, 2022, respectively.

Publication Date: 
Thursday, April 1, 2021 - 4:00am

Fuels Regulatory Streamlining

This action updates many of EPA's existing gasoline, diesel, and other fuel quality programs to improve overall compliance assurance and maintain environmental performance, while reducing compliance costs for industry and EPA.

Publication Date: 
Friday, December 4, 2020 - 4:00am