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• Where can I download hourly emissions data from continuous monitoring?

  Hourly emissions data files are available from the Clean Air Markets Division of EPA, collected as part of 40 CFR Part 75. The download location has changed in February, 2023. The new location is https://campd.epa.gov/data/bulk-data-files . Once on this new site, use the menu (at the left) and the Keyword…

  • Last published: January 29, 2024

• Where can I find older NEI data (prior to 2008)?

  The raw data and summaries that are still available (dating back to 1990) can be obtained from the web page https://www.epa.gov/air-emissions-inventories/pollutant-emissions-summary-files-earlier-neis . Starting with 2001 data, a more limited selection of summary files are available.

  • Last published: March 18, 2024

• How do the different parts of particulate matter (PM) fit together?

  The various parts of PM in the NEI are related as follows. PM10-FIL > PM25-FIL because PM10-FIL includes PM25-FIL PM25-PRI = PM25-FIL + PM-CON This equation only applies at the process level. Because some sources only can report PM2.5 (due to test method differences), this equation does not apply to…

  • Last published: April 17, 2024

• How does PM2.5 relate to PM species such as EC, OC, SO4, NO3, PMFINE, and DIESEL-PM25?

  Primary PM2.5 estimates are speciated into the five PM species in the NEI: elemental (black) carbon (EC), organic carbon (OC), nitrate (NO3), sulfate (SO4), and the remainder of PM25-PRI (PMFINE). Diesel engine PM25-PRI and PM10 emissions are also labeled as DIESEL-PM25 and DIESEL-PM10 for mobile source diesel engines. For all…

  • Last published: April 17, 2024

• If RFG is shipped from a refinery to a terminal through a proprietary pipeline system, may the pipeline rely on the refinery and terminal test results to satisfy the quality assurance defense element?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . In a case where EPA documents a downstream standard violation at a proprietary terminal that is served only by a proprietary pipeline that receives gasoline only from a proprietary refinery, the company that owns the refinery, pipeline and…

  • Last published: July 10, 2024

• If, due to piping constraints, a refiner must put a purchased or inter-refinery transferred batch of finished gasoline through the refinery blendstock system, but does so without the batch losing integrity, must the refiner include the batch in his compli

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . No. As per § 80.65(i) of the regulations, any refiner, importer, or oxygenate blender shall exclude from all compliance calculations, the volume and properties of any RFG that is produced at another refinery or oxygenate blending facility, or…

  • Last published: July 10, 2024

• In areas where an oxy fuels program is in effect, how do these requirements coincide with RFG requirements? In areas where there is an overlap, are any regulatory changes necessary by the state?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . In areas that are covered by both a state's winter oxy fuels and the federal RFG programs, the fuel must comply with both program requirements. Therefore, the more stringent 2.7 wt% minimum requirement of the winter oxy fuels…

  • Last published: July 10, 2024

• If foreign product is acquired by an importer through an exchange agreement instead of a sale, does it change identification of the importer for RFG reporting purposes?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . No. The person who is the importer of record for Customs purposes should be the importer for RFG purposes, and this is usually the gasoline owner, regardless of how that ownership was acquired.(7/1/94) This question and answer was…

  • Last published: July 10, 2024

• If terminals utilize the services of outside laboratories for periodic sampling and testing, how can the terminal limit exposure to liability in the event non-complying product from the tested tank(s) leaves the terminal during the three or four days befo

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . A terminal-distributor's release of RFG that does not meet applicable standards would constitute a violation of § 80.78(a)(1) for which the distributor would be liable, and it would not be a defense if the violation was caused by…

  • Last published: July 10, 2024

• If a pipeline must be classified as a refiner, how would that be handled administratively by EPA? Since pipelines don't own the product, would pipeline have to become buyers and sellers for regulatory purposes?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Refiners must be registered with EPA. The pipeline need not be an owner of the gasoline to be a refiner.(7/1/94) This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July…

  • Last published: July 11, 2024

• What are the sampling and testing requirements for terminal blenders (barges, trucks and pipelines)?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . If the facility's activities fit the definition of a refiner, it would have to sample and test each batch of gasoline as required under § 80.65(e). If its activities fit the definition of an oxygenate blender, it would…

  • Last published: July 11, 2024

• 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…

  • Last published: July 11, 2024

• What information needs to be included on RBOB product transfer documents? Is any information about min/max's required?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . The PTD requirements pertaining to RBOB can be found in § 80.77. They include the type of RBOB and the type and amount of oxygenate to be added as well as the min/max's for benzene and RVP, for…

  • Last published: July 11, 2024

• Who accounts for blending operations that take place in leased storage facilities?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Under the regulations, a refiner is any person who owns, leases, operates, controls, or supervises a refinery. As indicated above, an oxygenate blender is any person who owns, leases, operates, controls, or supervises an oxygenate blending facility, or…

  • Last published: July 11, 2024

• Who accounts for imported finished gasoline blended with blendstock?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . If the blendstock added to the imported finished gasoline is oxygenate, then the blending activity is ignored and the finished gasoline is reported by the importer. If some other blendstock is blended to the imported finished gasoline, e.g…

  • Last published: July 11, 2024