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Displaying 1 - 15 of 81 results

• 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

• What is a reactive and non-reactive solid EHS?

  Reactive solid means any extremely hazardous substance denoted with “a” in the “Notes” column in Appendix A or B of 40 CFR 355. Reactive solids are more likely than other solids to be dispersed into the air due to the energy or heat created from their reactivity with water or…

  • Last published: April 9, 2024

• How did states form their SERCs?

  How are States expected to form their State Emergency Response Commission (SERC) as required under Title III? States are required to establish a State Emergency Response Commission (SERC) under Title III. The SERC may consist of existing emergency response organizations or may be an entirely new mechanism to address this…

  • Last published: April 9, 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

• Pesticide applicator quantity applied to threshold or transportation exemption

  A farmer contracts with an applicator to spray pesticides on his fields. The applicator drives a tank truck onto the farmers' field and sprays the pesticide from the truck onto the fields. For purposes of Section 302 emergency planning requirements, are the EHSs in the truck considered present at the…

  • Last published: May 8, 2024

• State refusing to comply with the emergency planning provisions

  What will happen if a State refuses to comply with the emergency planning provisions? A governor who does not designate a State emergency response commission becomes the commission by default. While the governor could choose not to fulfill any of the Title III provisions, the public could still request information…

  • Last published: May 8, 2024

• Section 302 notification requirements and mixtures with unknown components

  Are facilities exempt from Section 302 notification requirements if they produce, use, or store mixtures whose extremely hazardous substance component information is not available on the MSDS provided by the manufacturer? If the facility which produces, uses, or stores mixtures knows or reasonably should know the components of the mixture…

  • Last published: May 8, 2024

• What will constitute a valid electronic signature for electronic submission of reports to EPA?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . EPA will require that each party who wants to report electronically must sign an agreement that the use of electronic reporting methods will be considered equivalent to paper methods and that personal identification numbers assigned by EPA will…

  • Last published: July 23, 2024

• What is the definition of a responsible corporate officer (RCO) who is required to certify some of the submissions involved?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Under § 80.75(n), reports to EPA must be signed and certified as correct by the owner or a responsible corporate officer of the refiner, importer, or oxygenate blender. "Owner" means the person who is the principal owner of…

  • Last published: August 2, 2024

• Could we become the delegated authority for submission of reports on behalf of our members?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Individual blenders could rely on your association to submit reports to EPA on their behalf. . However you should understand that if any reports are not submitted or are submitted improperly then responsibility would fall upon the individual…

  • Last published: August 2, 2024

• By our reading of the regulations, the only reporting required of the oxygenate blender who elects to comply with the oxygen standard on a per gallon basis is a yearly report due the last day of February of each year (beginning in 1996) that states the to

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Your interpretation is correct.(10/31/94) This question and answer was originally posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (PDF) (333 pp, 18.17 MB, EPA420-R-03-009, July 2003, About…

  • Last published: August 2, 2024

• Question 14, Section VI.C., of the July 1, 1994 Question and Answer Document provides an example of the creation and addition of two different batches to form a composite mixture. All or a portion of this composite is shipped as RFG. How will the refinery

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Question 14 relates to in-line blending operations that have petitioned EPA for and received an exemption from the independent sampling and testing requirements of the RFG regulations. In such petitions, refiners often define a "batch" of in-line blended…

  • Last published: August 6, 2024

• The batch report requires reporting the volume percent for six oxygenates -methanol, MTBE, ethanol, ETBE, TAME and t-butanol. If a refiner or oxygenate blender uses MTBE or ethanol as an oxygenate, and does not include in its calculation of oxygen weight

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Trace amounts of oxygenates that may be present in MTBE or ethanol do not have to be reported. However, where a refiner reports total oxygen weight percent that includes MTBE or ethanol plus other oxygenates in larger than…

  • Last published: August 6, 2024

• 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 7, 2025