Laws & Regulations

Cummins Settlement Nationwide Recall Program Overview

Overview of the recall program Cummins Inc. will implement for affected Ram 2500 and 3500 diesel trucks under the 2024 EPA settlement with the United States and California.

2009 TRI National Analysis Basic Data Files

Downloadable files containing the data used in the 2009 TRI National Analysis reports provided in the basic file format.

2010 TRI National Analysis Basic Data Files

Downloadable files containing the data used in the 2010 TRI National Analysis report provided in the basic file format.

EPA Protects Maui & Hawai‘i Water by Ordering Closure of Five Cesspools

EPA News Release: EPA Protects Maui & Hawai‘i Water by Ordering Closure of Five Cesspools

Release Date: August 15, 2024

2007 TRI Public Data Release Data Files

Downloadable TRI data files for calendar year 2007.

2006 TRI Public Data Release Data Files

Downloadable data files for calendar year 2006 TRI data.

2001 TRI Public Data Release Data Files

Downloadable data files for calendar year 2001 TRI data available in several different formats.

EPA and California Air Resources Board disapprove Volkswagen’s Proposed Emissions Modification for model year 2012 – 2014 manual transmission diesel Passat vehicles; VW intends to submit revised proposal

EPA and CARB approve an emissions modification proposed by Volkswagen (VW) to reduce nitrogen oxides emissions from model year 2009-2014, generation 1, 2.0 liter diesel Jetta, Golf, Beetle, and Audi A3 vehicles.

Final Alternative RIN Retirement Schedule for Small Refineries

EPA proposes an alternative schedule for small refineries to demonstrate compliance with their 2020 RFS obligations.

“Benchmarking a 2016 Honda Civic 1.5-liter L15B7 Turbocharged Engine and Evaluating the Future Efficiency Potential of Turbocharged Engines,” SAE Technical Paper 2018-01-0319, 2018, Mark Stuhldreher, John Kargul, Daniel Barba, Joseph McDonald, Stanislav B

This paper complete EPA benchmarking study of a 2016 Honda Civic with a 4-cylinder 1.5-liter L15B7 turbocharged engine and its CVT, including both chassis testing and engine dynamometer testing to measure vehicle and engine efficiencies.

“Predictive GT-Power Simulation for VNT Matching on a 1.6L Turbocharged GDI Engine,” SAE Technical Paper 2018-01-0161, 2018, Dennis Robertson, Graham Conway, Chris Chadwell, Joseph McDonald, Daniel Barba, Mark Stuhldreher, Aaron Birckett

This paper describes an engine model developed using GT-Power software with a predictive combustion mechanism which assessed the performance of a VNT’s ability to support low pressure LP-EGR across the engine operating map and its impact on thermal e

Diesel Fuel Standards and Rulemakings

This page lists the regulations, rules and fact sheets on highway diesel and nonroad diesel.

“Selective Interrupt and Control: An Open ECU Alternative,” SAE Technical Paper 2018-01-0127, 2018, Logan Smith, Ian Smith, and Scott Hotz

This paper describes the development process of SIC that enabled a test engineer to command off-calibration setpoints for intake and exhaust cam phasing as well as ignition timing without the need for an open ECU duplicating the stock calibration.

National Estuary Program Comprehensive Conservation and Management Plan Revision and Update Guidelines.

Requirements and procedures

Statutes for Gasoline Standards

This page summarizes the statutes for gasoline standards.

Tarp Testing Guidance

Since the reactivity, stability, and other chemical properties are different for each soil fumigant pesticide, the permeability of each fumigant through a film will be different. Certain tarps that qualify for buffer zone reduction credits are listed.

“Modeling and Controls Development of 48V Mild Hybrid Electric Vehicles,” SAE Technical Paper 2018-01-0413, 2018, SoDuk Lee, Jeff Cherry, Michael Safoutin, Anthony Neam, Joseph McDonald, Kevin Newman

This presents controls development, modeling results, and model validation for simulations of a vehicle with a 48 V (BISG) mild hybrid electric vehicle and an initial model design for a 48 V inline on-axis P2-configuration mild hybrid electric vehicle.

Apache Corporation Settlement

Apache Corporation (Apache) has agreed to pay $4 million in civil penalties and undertake projects expected to cost at least $5.5 million to ensure 422 of its oil and gas well pads in New Mexico and Texas comply with federal and state clean air regulations

Improvements for Heavy-Duty Engine and Vehicle Test Procedures

EPA is taking a final action to improve the Greenhouse Gas Emissions Model (GEM) compliance tool for heavy-duty vehicles.

Village of Pecos - NPDES Permit No. NM0029041