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  • Why Doesn't my Output Vehicle Miles Traveled (VMT) Match my Input VMT?

    See More Frequent Questions about MOVES and Related Models . This problem usually occurs when the run specification does not include all possible vehicle and fuel types. MOVES internally allocates the input VMT to each of the source types and fuel types and only reports the VMT for the fuel…

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  • What does MOVES Assume for Future Year Fleet Fuel Efficiency and Emissions?

    See More Frequent Questions about MOVES and Related Models . MOVES reflects all fuel economy and emissions standards that were final as of the model release date. For a list of recent regulations accounted for in the most recent MOVES version, see the see the Overview of EPA’s Motor Vehicle…

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  • Does an ethanol producer who sells undenatured ethanol to a U.S. importer who denatures it at the port need to register with EPA under RFS?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . The RFS regulations specify that foreign producers of ethanol for use in transportation fuel, heating oil or jet fuel for import to the US who do not add denaturant to their product, must register under RFS. See 80.1450(b)…

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  • What should I do if I am concerned about my family's exposure to lead?

    Answer : A blood test is the only way to find out whether you or a family member already has lead poisoning. Call your doctor or local health department to arrange for a blood test. You can protect your family every day by: Regularly cleaning floors, window sills, and other…

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  • What are some of the health effects of lead in children?

    Answer : Lead is especially dangerous to children under six years of age. Lead can affect children's brains and developing nervous systems, causing reduced IQ and learning disabilities, and behavioral problems. Even children who appear healthy can have dangerous levels of lead in their bodies. To learn more about the…

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  • How does MOVES Calculate CO2 and CO2 Equivalent Emissions?

    See More Frequent Questions about MOVES and Related Models . MOVES calculates the energy it takes to operate an onroad vehicle based on energy consumption rates as explained in the technical reports Greenhouse Gas and Energy Consumption Rates for Onroad Vehicles MOVES3 (pdf) (November 2020, EPA-420-R-20-015) and Exhaust Emission Rates…

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  • Why Are There No Emissions for the Early and Late Hours of the Day for Certain Source Types?

    See More Frequent Questions about MOVES and Related Models . MOVES has no start emissions for the certain source types in certain hours of the day. While we know that a non-zero number of these source types do start late at night, our activity data on these trucks and buses…

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  • What information can I get about lead-based paint in a home before I buy or rent it?   

    Answer : Many houses and apartments built before 1978 have some lead-based paint. Lead from paint chips, and dust can pose serious health hazards if not taken care of properly. Federal law requires that individuals receive certain information before renting or buying pre-1978 housing. Sellers and landlords must: Disclose information…

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  • I thought lead-based paint had been phased out. How many homes still contain lead-based paint?

    Answer : The Department of Housing and Urban Development’s (HUD) National Survey of Lead and Allergens in Housing estimated that 38 million permanently occupied housing units (40% of all housing units) in the United States contain some lead-based paint that was applied before the residential use of lead-based paint was…

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  • What is Lead?

    Answer : Lead is a toxic metal that was used for many years in products found in and around our homes. Lead also can be emitted into the air from motor vehicles and industrial sources, and lead can enter drinking water from plumbing materials. Lead-based paint is present in many…

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  • What are the requirements for a foreign producer who wishes to generate RINs for the renewable fuel they produce?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Foreign producers who plan to generate RINs must register and conduct a third-party engineering review pursuant to section 80.1450. Additionally, such foreign producers must meet the requirements in section 80.1466 prior to generating any RINs for their fuel…

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  • Where is lead found?

    Answer: Many homes built before 1978 have lead-based paint. In general, the older your home, the more likely it has lead-based paint. Soil around a home can contain lead from sources like deteriorated exterior paint, past use of leaded gas in cars, or from past renovation activities. Household dust can…

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  • What is the most significant source of childhood lead exposure in a residence?

    Answer : The scientific literature suggests that nationally lead-contaminated paint dust is the most significant source of childhood lead exposure. Lead dust comes from deteriorating lead-based paint and lead-contaminated soil that gets tracked into your home. This dust may accumulate to unsafe levels. Common renovation activities like sanding, cutting, and…

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  • What are some of the health effects of lead?

    Answer : Lead is known to cause a range of health effects, from behavioral problems and learning disabilities, to seizures and death. Children under six years of age are most at risk from exposure to lead-based paint because they crawl on the floor and they put their hands and other…

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  • What Pollutants are Included in “oxides of nitrogen” in MOVES?

    See More Frequent Questions about MOVES and Related Models . The definition of NOx in MOVES (NO + NO2 + HONO) is different than the standard NOx definition of NOx (NO + NO2). This change has been made to correct the exhaust NOx emission in MOVES for potential interference with…

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