Learn the Issues

In the case of parties who wish to blend butane into RFG or conventional gasoline, what options are available for meeting the testing requirements that apply to this activity?

See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. The addition of blendstock, including butane, to RFG or conventional gasoline would constitute the production of gasoline, with the result that the blender would be considered a refiner under the RFG and anti-dumping regulations, and would be subject to…

Last published: May 8, 2026

Clarify that the valid range for RVP specified in the regulations has no effect on winter calculations with the Complex Model since the RVP is fixed at 8.7 psi in the winter regardless of the actual RVP of the fuel.

See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. That is correct. Since the winter Complex Model requires the use of an RVP of 8.7 psi for both baseline and target fuels regardless of the actual RVPs, the valid range limits for RVP do not apply to the…

Last published: May 8, 2026

Test Reports for Aftermarket Retrofit Devices

These test reports are for all of the specific products tested by EPA under the Aftermarket Retrofit Device Evaluation Program.

COVID Impacts Session (2023 EIC)

Presentations/papers given at the COVID Impacts session of the 2023 IEIC

Southeast New England Program

The Southeast New England Program aims to enhance collaboration among stakeholders and promote innovation in policy, monitoring and best management practices in Rhode Island and southeast Massachusetts.

CWA-09-2021-0002: Proposed Settlement of Clean Water Act Class I Administrative Penalty; Gills Onions LLC, Oxnard, CA

Proposed Settlement of Clean Water Act Class I Administrative Penalty in the matter of Gills Onions, LLC, 1051 South Pacific Avenue, Oxnard, CA, 93030. Docket No. CWA-09-2021-0002.

Chemical Waste Management Inc. Kettleman Hills Facility: TSCA PCB Permit and Supporting Documents

Toxic Substances Control Act (TSCA) final polychlorinated biphenyl (PCB) approval (permit) and supporting documents for Chemical Waste Management Inc. Kettleman Hills Facility (KHF).

CWA-09-2024-0006: Proposed Settlement of Clean Water Act Class I Administrative Penalty; BBK Enterprises Inc., Vallejo, California

Proposed Expedited Settlement Agreement between EPA Region 9 and Transport Products Unlimited, Inc. to resolve the a civil administrative penalty proceeding commenced under Section 309(g) of the CWA.

Regional Coordinators & Task Forces in the Regions of California/Baja California and Arizona/Sonora

Information about the two Border 2020 regional workgroups for California/Baja California and Arizona/Sonora.

Documents, Reports and Photographs for U.S. Steel Corporation MVW Fairless Works in Fairless Hills, Pennsylvania

RCRA Corrective Action U S Steel Fairless Works (USS Fairless Works), Fairless Hills, PA, Documents and Reports

Criminal Enforcement's Intergovernmental Partnerships

Provides information on EPA Criminal Enforcement partnerships with state, local agencies, international partners

Hazardous Waste Cleanup: Stauffer Management Company in Skaneateles Falls, New York

Stauffer Management Company (SMC) is located at 4512 Jordan Road in Skaneateles, New York. The facility is approximately 120 acres in size, of which about 20 acres were used for industrial operations. The site has been used to manufacture various organic,

Battery Collection Tip Sheet: General Assistance Program Funding for Battery Recycling Programs

Learn the type of management tools you can use for assessment is sustainable electronics.

Check - Evaluating Parts of an EMS

This page takes you though the basic steps (Plan, Do, Check, Act) of building an Environmental Management System (EMS) as they are outlined in the 2001 Second Edition of Environmental Management Systems: An Implementation Guide. "Check" section.

IAQ Science and Technologies

List of links to learn about indoor air quality.

Hazardous Waste Cleanup: Solutia Incorporated in Bridgeport, New Jersey

The Solutia Delaware River Plant has been operating since 1961. The site was part of Monsanto until September 1977 when the corporation spun off its chemical business, which became Solutia Incorporated. The site is adjacent to the Delaware River on 461