Learn the Issues
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The regulations state that gasolines with RVP equal to or less than the RVP required under 40 CFR 80.27 (Summer Gasoline) shall use the applicable Summer Complex Model under 80.45 and the Winter Model for RVP's greater than that required under 40 CFR 80.27. In most areas of the country 9.0 psi was the summer specification under 40 CFR 80.27. Would this mean that any conventional gasoline produced to an RVP less than or equal to 9.0 psi would use the Summer Complex Model and greater than 9.0 psi would use the Winter Complex Model no matter what time of the year that gasoline is produced? Does the fact that under § 80.27 gasoline in the Southern Areas that goes to an ozone non-attainment area must be 7.8 psi alter this split in any way? Is 9.0 psi gasoline produced in California for distribution to Arizona certified with the Summer or Winter Complex Model?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Section 80.101(g)(5) and (6) state that the emissions performance of gasoline with an RVP that is equal to or less than that required under § 80.27 must be determined using the appropriate summer complex model and that the emissions…
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What are the requirements for retailers in the covered areas?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Retailers are subject to certain controls and prohibitions on reformulated gasoline as provided in § 80.78 of the regulations, such as meeting downstream standards, not selling conventional gasoline in RFG areas, selling VOC-controlled gasoline for the proper VOC Control…
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What are the requirements for reporting to EPA in the case of an independent lab that conducts sampling and testing that is unrelated to the independent sampling and testing requirements that apply for refiners or importers, such as quality assurance sampling and testing for a downstream pipeline or terminal?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. There is no requirement that the results of downstream quality assurance sampling and testing must be reported to EPA. This is true both in the case of quality assurance sampling and testing by downstream parties such as pipelines or…
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What are specific calculation steps for conventional gasoline exhaust toxics and NOx emission performance? Is the annual statutory baseline used? If not, how are batches to be assigned to the summer/winter statutory baselines?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. The regulations currently state that batches of gasoline are to be designated as summer or winter for purposes of compliance calculations under the Complex Model based on the RVP of the gasoline (§ 80.101(g)(1)(ii)). However, EPA issued guidance in…
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What are the units for RFG credit trading?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. The units for oxygen and benzene credit trading are the units required for calculating batch properties under §§ 80.66(d) and (e), i.e., wt%-gallons for oxygen, vol%-gallons for benzene. (4/18/95) This question and answer was posted at
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What are the standards for RFG?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. The standards applicable to RFG under each model may be found in § 80.41 of the regulations. (7/1/94) This question and answer was posted at
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Risk Evaluation for Cyclic Aliphatic Bromide Cluster (HBCD)
EPA's existing chemicals programs address pollution prevention, risk assessment, hazard and exposure assessment and/or characterization, and risk management for chemicals substances in commercial use.
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Risk Evaluation for 1,2-Dichloroethane
EPA designated 1,2-dichloroethane as a high priority chemical in December 2019 and the chemical is currently undergoing risk evaluation.
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U.S. Government’s International Methane Mitigation Activities: 2019 Accomplishments
The U.S. Government’s Global Methane Initiative Accomplishments ANNUAL REPORT (2019)
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RadNet Sampling and Analyses Schedules
RadNet air monitors operate continuously and samples of air, precipitation and drinking water and analyzed on a routine schedule. In a radiological emergency, EPA may deploy teams to conduct air monitoring and environmental sampling.
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Lead Designations - North Carolina State Recommendations and EPA Responses
Lead Designations - 2008 Standards. North Carolina State Recommendations and EPA Responses, Round 1 and 2
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SO2 Designations - Round 1 New York State Recommendation and EPA Response
SO2 Designations - State Recommendations and EPA Responses - Round 1 - New York
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SO2 Designations - Round 1 North Carolina State Recommendation and EPA Response
SO2 Designations - State Recommendations and EPA Responses - Round 1 - North Carolina
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SO2 Designations - Round 1 New Mexico State Recommendation and EPA Response
SO2 Designations - State Recommendations and EPA Responses - Round 1 - New Mexico
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SO2 Designations - Round 1 New Jersey State Recommendation and EPA Response
SO2 Designations - State Recommendations and EPA Responses - Round 1 - New Jersey
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SO2 Designations - Round 1 New Hampshire State Recommendation and EPA Response
SO2 Designations - State Recommendations and EPA Responses - Round 1 - New Hampshire
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SO2 Designations - Round 1 Missouri State Recommendation and EPA Response
SO2 Designations - State Recommendations and EPA Responses - Round 1 - Missouri
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SO2 Designations - Round 1 Nebraska State Recommendation and EPA Response
SO2 Designations - State Recommendations and EPA Responses - Round 1 - Nebraska
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SO2 Designations - Round 2 Oklahoma State Recommendation and EPA Response
SO2 Designations - State Recommendations and EPA Responses - Round 2 - Oklahoma
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SO2 Designations - Round 1 Nevada State Recommendation and EPA Response
SO2 Designations - State Recommendations and EPA Responses - Round 1 - Nevada