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Displaying 1 - 13 of 13 results

• 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…

  • Last published: July 10, 2024

• Please clarify whether oxygenates blended into either conventional gasoline or Reformulated Blendstock for Oxygenate Blending (RBOB) downstream of the refinery need to be included in sulfur compliance calculations.

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Section 80.205(c) provides that a refiner or importer may include oxygenates added downstream from the refinery or import facility if the requirements under § 80.69(a) or § 80.101(d)(4)(ii) of the RFG/CG regulations are met. Therefore, a refiner or…

  • Last published: August 2, 2024

• 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…

  • Last published: October 23, 2024

• In the NPRM, the sulfur standards were expressed without decimal places, but the final rule provides that the standards are expressed with two decimal places (§§ 80.195, 205). Why did EPA include this change?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . EPA included the decimal places to ensure that the sulfur standards are not exceeded by rounding down actual average sulfur levels. We do not believe reporting the average sulfur level to two decimals creates any additional burden as…

  • Last published: July 15, 2024

• It is our understanding that, if a portion of the gasoline produced by a refinery located within the GPA is sold outside of the United States, that gasoline is not subject to the sulfur standards and it only has to meet the standards of the country to whi

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Gasoline that is exported for sale outside the United States is not subject to the requirements of the gasoline sulfur rule, including gasoline produced by a refiner located within the GPA. See § 80.200(c).

  • Last published: July 15, 2024

• Can you explain who has authority over the active mine vs the Superfund site?

  The Montana Department of Environmental Quality has regulatory authority over the active mine. EPA is the lead agency for the Silver Bow Creek/Butte Area Superfund Site and works in consultation with MDEQ to ensure the cleanup of the Site.

  • Last published: September 26, 2024

• 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…

  • Last published: March 20, 2024

• 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…

  • Last published: July 10, 2024

• 6. Is commingling of different types of ethanol permitted? If so, what systems must be employed?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . With one exception, the RFS program places no restrictions on the mixing of ethanol produced in different facilities, by different feedstocks, or through different processes. Also, RINs assigned to ethanol are fungible, in that a specific assigned RIN…

  • Last published: July 15, 2024

• If a facility is grandfathered, is it also exempt from the requirement that feedstocks must be renewable biomass?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Even if a facility is exempt from the 20% GHG reduction requirement, in order to generate RINs, the facility is still required to use feedstocks that meet the definition of renewable biomass. The definition of renewable fuel in…

  • Last published: July 15, 2024

• Is corn oil extracted from distiller?s grains and solubles (DGS) eligible for RINs under RFS2?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Biodiesel or renewable diesel made from non-food grade corn oil extracted from DGS that is made from renewable biomass is eligible to generate RINs. See Table 1 to 80.1426.

  • Last published: July 15, 2024

• 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…

  • Last published: July 10, 2024

• What Drives Seasonal CO Emission Trends?

  See More Frequent Questions about MOVES and Related Models . Once a vehicle’s engine/catalyst reaches operating temperature, the ambient temperature has little effect on the emissions performance of the vehicle. These “running” emission rates in MOVES have no temperature adjustment. However, during summer months at warm temperatures, MOVES assumes extensive…

  • Last published: July 10, 2024