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What is radon gas? Is it dangerous? Are there regulations that require sampling and testing by each facility, or do you just need a sampling and testing program to establish a defense? ASTM and ISO frequently update their test methods; must an EPA approved method be resubmitted to the EPA for approval if the modifications to the test methods (that are made by ASTM and ISO) are minor and have no significant impact on the accuracy and pre ASTM updates test methods every five years. Will EPA issue a ruling that will allow the latest (most up to date) version? At the terminal, if a pour point depressant, conductivity improver, lubricity improver which is compliant to the 15 ppm standard is injected, must the terminal operator register as a refiner? Can EPA give some direction regarding, or an example of, an acceptable pump label? Could a fleet operator that owns and uses only pre-model year 2007 motor vehicles indefinitely use 500 ppm highway diesel fuel? Even after 2010? What if the fleet operator also produces his own motor vehicle diesel fuel? During the lead phasedown in gasoline, EPA mandated that larger nozzles be installed on gasoline dispensers with leaded fuel and that restrictor plates be installed on the fill pipes of vehicles' fuel tanks, preventing the fueling of cars designed for unl For consumers with a 2007 vehicle how will they be educated to look for sulfur content at a station to prevent inadvertent use of 500 ppm? Has anyone given any thought as to what the other parameters will look like once ULSD is fully produced (i.e. aromatics, cetane number, nitrogen, etc.)? Are there any issues with respect to the energy content of diesel with the increased hydrotreating pot Given the results of the recent ASTM round robin testing comparing the repeatability and reproducibility of the designated ASTM 6428 sulfur test and the alternative ASTM 5453 test, will EPA reconsider the issue and define the more precise ASTM 5453 test If a company has two (or more) refineries and transfers highway diesel blendstocks between refineries, are they precluded from aggregating? If a large refinery spins off a small refinery how long does the small refiner have to apply for the small refiner status? If a pipeline or terminal has test results indicating that motor vehicle diesel fuel sulfur content is 15 ppm and EPA tests show the sulfur content is greater than 18 ppm, would the pipeline's tests be an acceptable defense, or would the EPA's test result In order to be in compliance with the lubricity requirements of the ASTM D 975 diesel fuel specification, refineries will have to use lubricity additives, some of which may contain sulfur. Most, if not all, pipelines will likely prohibit the use of these FAQs Videos
  • What is radon gas? Is it dangerous?

    Radon is a naturally-occurring radioactive gas that can cause lung cancer. Radon gas is inert, colorless and odorless. Radon is naturally in the atmosphere in trace amounts. Outdoors, radon disperses rapidly and, generally, is not a health issue. Most radon exposure occurs inside homes, schools and

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  • Are there regulations that require sampling and testing by each facility, or do you just need a sampling and testing program to establish a defense?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. In general, the only parties that must sample and test are refiners and importers; under § 80.581, they must sample and test each batch of motor vehicle or NRLM fuel subject to the 15 ppm sulfur standard that is

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  • ASTM and ISO frequently update their test methods; must an EPA approved method be resubmitted to the EPA for approval if the modifications to the test methods (that are made by ASTM and ISO) are minor and have no significant impact on the accuracy and pre

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. All EPA approvals are specific not only to a given test method and laboratory, but also to a particular version of that test method. Thus, if ASTM or ISO released a revised version of a test method, any EPA

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  • ASTM updates test methods every five years. Will EPA issue a ruling that will allow the latest (most up to date) version?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. The nonroad diesel rule contains a performance-based provision specifically for diesel sulfur that allows the use of any diesel sulfur test method that meets certain criteria for accuracy and precision. Under this

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  • At the terminal, if a pour point depressant, conductivity improver, lubricity improver which is compliant to the 15 ppm standard is injected, must the terminal operator register as a refiner?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Injecting such additives to a batch of fuel would not make a terminal operator a refiner. Question and Answer was originally posted at Questions and Answers on the Clean Diesel Fuel Rules (PDF)(135 pp, 888 K

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  • Can EPA give some direction regarding, or an example of, an acceptable pump label?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. While it is possible for labels to look somewhat different in regards to color scheme, maximum font size, etc., all labels must meet the following requirements (unless otherwise approved by EPA) specified in §§ 80

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  • Could a fleet operator that owns and uses only pre-model year 2007 motor vehicles indefinitely use 500 ppm highway diesel fuel? Even after 2010? What if the fleet operator also produces his own motor vehicle diesel fuel?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. The regulations at § 80.500(d)(4) state that beginning December 1, 2010 the sulfur content standard of § 80.520(c) (i.e., the 500 ppm sulfur standard) shall no longer apply to any motor vehicle diesel fuel. After

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  • During the lead phasedown in gasoline, EPA mandated that larger nozzles be installed on gasoline dispensers with leaded fuel and that restrictor plates be installed on the fill pipes of vehicles' fuel tanks, preventing the fueling of cars designed for unl

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. We did not finalize any provisions beyond fuel pump labeling requirements. We recognized that some potential for misfueling would still exist and continued to discuss options in meetings and workshops with industry

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  • For consumers with a 2007 vehicle how will they be educated to look for sulfur content at a station to prevent inadvertent use of 500 ppm?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. The fuel regulations require that all fuel pumps be labeled to inform the user which fuel they are dispensing into their vehicle. These labels will state which engines/vehicles that the specific fuel is suitable

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  • Has anyone given any thought as to what the other parameters will look like once ULSD is fully produced (i.e. aromatics, cetane number, nitrogen, etc.)? Are there any issues with respect to the energy content of diesel with the increased hydrotreating pot

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. There is a projected change in density and energy content per gallon, thus leading to a small change in fuel economy. In most cases it should be imperceptible- since the change still falls within the range of

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  • Given the results of the recent ASTM round robin testing comparing the repeatability and reproducibility of the designated ASTM 6428 sulfur test and the alternative ASTM 5453 test, will EPA reconsider the issue and define the more precise ASTM 5453 test

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. The regulations finalized with the nonroad rule modified the sulfur test method requirements. Instead of a designated method, there are now simply performance-based requirements that must be met, allowing the use

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  • If a company has two (or more) refineries and transfers highway diesel blendstocks between refineries, are they precluded from aggregating?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Refineries are precluded from aggregating with other refineries. Question and Answer was originally posted at Questions and Answers on the Clean Diesel Fuel Rules (PDF)(135 pp, 888 K, EPA420-B-06-010, July 2006

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  • If a large refinery spins off a small refinery how long does the small refiner have to apply for the small refiner status?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. The dates to apply for small refiner status were specified in both rulemakings, and the deadlines have passed for both highway and nonroad diesel. Question and Answer was originally posted at Questions and Answers

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  • If a pipeline or terminal has test results indicating that motor vehicle diesel fuel sulfur content is 15 ppm and EPA tests show the sulfur content is greater than 18 ppm, would the pipeline's tests be an acceptable defense, or would the EPA's test result

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. EPA would treat this as a violation. Question and Answer was originally posted at Questions and Answers on the Clean Diesel Fuel Rules (PDF)(135 pp, 888 K, EPA420-B-06-010, July 2006, About PDF)

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  • In order to be in compliance with the lubricity requirements of the ASTM D 975 diesel fuel specification, refineries will have to use lubricity additives, some of which may contain sulfur. Most, if not all, pipelines will likely prohibit the use of these

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. No, volumetric calculations cannot be used to account for the sulfur content of these additives. Question and Answer was originally posted at Questions and Answers on the Clean Diesel Fuel Rules (PDF)(135 pp, 888 K

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  • FAQs

    What are the US EPA standard conditions? ›

    Definition: EPA-defined standard conditions of temperature and pressure are 68°F (20°C) and 14.7 psia (760 mm Hg). Definition: Standard cubic feet per minute is the gas flow rate at standard conditions expressed in the American Engineering system of units.

    What is the basics of watershed? ›

    The simple definition of a watershed is that it is the area of land that catches rain and snow that drains or seeps into a common marsh, stream, river, or lake. You're sitting in a watershed now. Homes, farms, ranches, forests, small towns, big cities and virtually all lands make up watersheds.

    What are the two parts of the watershed? ›

    The parts of a watershed

    As described in the infographic above, the moisture of a watershed is composed of two parts (not counting atmospheric water content)—the part we can see, surface water, and the part we can't, groundwater.

    What is the name for the land of area where all the rain runs downhill to certain point? ›

    A watershed is an area of land that drains all the streams and rainfall to a common outlet such as the outflow of a reservoir, mouth of a bay, or any point along a stream channel.

    What is the rule of five EPA? ›

    The Safe Drinking Water Act (SDWA) requires that once every five years EPA issue a list of unregulated contaminants to be monitored by public water systems (PWSs).

    What are 4 examples of EPA regulations? ›

    EPA is charged with administering all or a part of each.
    • Atomic Energy Act (AEA)
    • Beaches Environmental Assessment and Coastal Health (BEACH) Act.
    • Chemical Safety Information, Site Security and Fuels Regulatory Relief Act.
    • Clean Air Act (CAA)
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