Learn the Issues
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CSC Tip Sheets: Action Checklists
Learn how to use action checklists to motivate behavior change by providing a clear and concise list of activities that community members and organizations can use to reduce their carbon footprint and achieve other sustainability goals.
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CSC Tip Sheets: Effective Messaging
Learn best practices for implementing effective messaging to reach potential program participants and communities.
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If a refiner produces RBOB and sends it down a proprietary line to his own terminal where it is blended with ethanol, is the refiner required to register as an oxygenate blender for this terminal oxygenate blending operation?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Yes. (7/1/94) This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (pdf) (18.2 MB, July 2003, EPA420-R-03-009).
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If a given refinery produces both reformulated and conventional gasoline, must that refinery use the same model for both?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Yes. (7/1/94) This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (pdf) (18.2 MB, July 2003, EPA420-R-03-009).
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Can a refiner complying on a per gallon basis take domestic delivery of a product from a refiner or an importer that meets per gallon or minimum/maximum standards for averaged gasoline but does not meet per gallon standards?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Yes. (7/1/94) This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (pdf) (18.2 MB, July 2003, EPA420-R-03-009).
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EPA has indicated that a batch of RFG should be certified based on the volume shipped out of the refinery from the blending tank. However, where a blend is transferred to a storage tank after blending, the batch may be certified based on the volume transferred from the blending tank to the storage tank. In the latter instance, if an amount of gasoline that is different from the certified batch volume is then shipped out of the refinery from the storage tank, should the volume that is actually shipped out be included on the PTDs?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Yes. (5/9/95) This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (pdf) (18.2 MB, July 2003, EPA420-R-03-009).
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80.77(d) requires that transfer documentation include "the location of the gasoline at the time of the transfer." Does this mean the physical address of the transferring facility?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Yes.(7/1/94) This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (pdf) (18.2 MB, July 2003, EPA420-R-03-009).
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Xeric Ecoregion - National Rivers and Streams Assessment Results
NLA 2012 Results for the Xeric ecoregion
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Western Mountains Ecoregion - National Rivers and Streams Assessment Results
NLA 2012 Results for the Western Mountains ecoregion
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May a refiner use the same independent lab to satisfy the RFG independent sampling and testing requirements and to conduct sampling and testing needs that are unrelated to the RFG requirements (e.g., internal quality assurance or custody transfer sampling and testing)?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Yes. (7/1/94) This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (pdf) (18.2 MB, July 2003, EPA420-R-03-009).
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Is splash blending of oxygenates allowed under the RFG program?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Yes. (7/1/94) This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (pdf) (18.2 MB, July 2003, EPA420-R-03-009).
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1992 Earth Summit
Documents related to the 1992 Earth Summit in Rio
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Temperate Plains Ecoregion - National Rivers and Streams Assessment Results
NLA 2012 Results for the Temperate Plains ecoregion
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Southern Plains Ecoregion - National Rivers and Streams Assessment Results
NLA 2012 Results for the Southern Plains ecoregion
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Northern Plains Ecoregion - National Rivers and Streams Assessment Results
NLA 2012 Results for the Northern Plains ecoregion
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Northern Appalachians Ecoregion - National Rivers and Streams Assessment Results
NLA 2012 Results for the Northern Appalachians ecoregion
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Coastal Plains Ecoregion - National Rivers and Streams Assessment Results
NLA 2012 Results for the Coastal Plains ecoregion
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Section 80.74(a)(2)(ii) requires "the identification of the person who collected the sample and the person who performed the testing." In the case where samples are taken and analysis performed by an independent testing company, would it be sufficient to identify the independent testing company in place of the sampler and tester?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Yes. (4/18/95) This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (pdf) (18.2 MB, July 2003, EPA420-R-03-009).
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Ecoregional Results - National Rivers and Streams Assessment 2018-19
Results for the National Lakes Assessment 2012, including key findings, national results, ecoregional results, and state highlights.
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Reports and Data - National Rivers and Streams Assessment 2018-19
Products from the national lakes assessment 2017 including report, technical report, factsheet, data files, and data dashboard