Learn the Issues

At an in-line blending facility, a portion of batch A is captured in an empty storage tank and not immediately shipped. Then a portion of batch C is added to that tank and the combined mixture is shipped. How do the records show compliance with reformulated gasoline regulations?

See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Batches A and C will be certified separately based on the results from the composite sample analyses for each of these batches (unless EPA has approved another method of sampling for a particular refiner). Since product transfer documents…

Last published: May 23, 2025

Is it possible to get an exemption to use conventional gasoline in an RFG covered area for testing purposes?

See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . The RFG regulations do not provide an exemption from the RFG requirements for testing purposes. However, EPA would consider allowing the use of conventional gasoline in an RFG covered area for purposes of a testing program if sufficient…

Last published: May 23, 2025

Is independent sampling and testing required of terminals that supply RFG?

See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . The only parties who are required to meet the independent sampling and testing requirements are refiners and importers. A party that meets the definition of distributor or reseller, such as a terminal, therefore, is not required to meet…

Last published: May 23, 2025

Resources to Design and Implement Customer Complaint Surveillance for Surveillance and Response Systems

Provides information on how to implement customer complain surveillance

Is independent sampling and testing required of oxygenate blenders?

See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . A party who meets the definition of oxygenate blender is not required to have the gasoline it produces sampled or tested by an independent lab. However, an oxygenate blender is required to sample and test the gasoline it…

Last published: May 23, 2025

In many cases, no document is created on the date that title of the renewable fuel is transferred to the purchaser, which typically is the date the purchaser receives the fuel, and an invoice typically is used by the parties to recognize the transfer of t

See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . The regulations at section 80.1128(a)(7) provide that any RINs assigned to a renewable fuel must be recorded on the product transfer document used to transfer ownership of the renewable fuel volume to another party, or the RINs may…

Last published: May 23, 2025

2020 Great Lakes Human Health Fish Fillet Tissue Study

This page contains information about 2020 Great Lakes Human Health Fish Fillet Tissue Study

It appears we are creating an automatic non-compliance period for September, 2007. If I own ethanol on September 1, 2007, it will not have assigned RINs. As an obligated party, I will be blending this ethanol into gasoline at my terminal, but I won't be getting any RINs for that ethanol.

See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . It may be the case that some ethanol blended into gasoline at the beginning of the program will not have assigned RINs. However, the RVO is determined annually, not quarterly or monthly, and in general ethanol purchased after…

Last published: May 23, 2025

Download and Install the Water Health and Economic Analysis Tool for Your Water Utility

Provides utilities with a quick overview of the WHEAT Tool interface and download and installation instructions.

Understanding Lake Ecology

This module links to one part of an online training site , Water on the Web, that provides information on the basic concepts necessary to understand how lakes function.

Tidal Restrictions Presentation Slides

Tidal Restrictions Webinar: Presentation Slides

Nature-based Solutions for Climate Resilience Webcast

Webcast on nature-based solutions for climate resilience

The WaterSense Current: Winter 2024

The WaterSense Current is a quarterly update dedicated to news and events related to WaterSense.

Partners in Action

Learn how partners are making a difference in communities around the country and whether there are events near you.

HOA Resources

additional resources and case studies for HOAs

Best Management Practices

WaterSense has developed a comprehensive guide of best management practices that facilities can use to improve water efficiency.

Consent Agreement and (Proposed) Final Order: Nevada Tri Partners, LLC and Damonte Ranch Commerce Center, LLC; Reno, Nevada

Consent agreement and proposed final order In the Matter of Nevada Tri Partners, LLC and Damonte Ranch Commerce Center, LLC, Reno, Nevada. EPA Docket Number CWA-09-2025-0059.