Search Frequent Questions

Displaying 1 - 15 of 54 results

• Can I apply a product using a method that is not specified in the directions for use?

  List N: Disinfectants for Use Against SARS-CoV-2 View List N, a searchable and sortable list of products for use against SARS-CoV-2, the novel human coronavirus that causes COVID-19. Any time you use an EPA-registered disinfectant, you should read the product label and follow the directions, including the method of application…

  • Last published: April 9, 2025

• 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 total volume of RFG produced along with the certification statement. Is our interpretation correct? Are we correct in assuming that batch numbers and individual batch data are not required as part of the report?

  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

  • Last published: May 21, 2025

• Will an Ozone Generator protect me and my family from COVID-19?

  No, do not use ozone generators in occupied spaces. When used at concentrations that do not exceed public health standards, ozone applied to indoor air does not effectively remove viruses, bacteria, mold, or other biological pollutants. Visit the Centers for Disease Control and Prevention's website for best practices to protect…

  • Last published: July 24, 2025

• I need to disinfect a public space like a store or school. What do I need to know?

  List N: Disinfectants for Use Against SARS-CoV-2 View List N, a searchable and sortable list of products for use against SARS-CoV-2, the novel human coronavirus that causes COVID-19. The Centers for Disease Control and Prevention (CDC) have guiding principles available for workplaces, businesses, administrators and teachers. View the CDC's website…

  • Last published: August 28, 2025

• 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: October 16, 2025

• 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 account for this shipment under recordkeeping and averaging requirements (assuming the refinery is averaging), based on the scenario outlined in Question 14?
  

  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: November 6, 2025

• Do disinfectants kill newer variants of coronavirus?

  List N: Disinfectants for Use Against SARS-CoV-2 View List N, a searchable and sortable list of products for use against SARS-CoV-2, the novel human coronavirus that causes COVID-19. Yes, EPA expects all products on List N to kill all variants of SARS-CoV-2. Genetic changes to the virus do not impact…

  • Last published: April 9, 2025

• Where can professionals who manage school, office, and commercial buildings get information on ventilation and filtration to respond to COVID-19?

  Professionals who operate school, office, and commercial buildings should consult the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) guidance for information on ventilation and filtration to help reduce risks from the virus that causes COVID-19. In general, increasing ventilation and filtration is usually appropriate; however, due to the…

  • Last published: April 9, 2025

• Can air cleaning devices that use bipolar ionization, including portable air cleaners and in-duct air cleaners used in HVAC systems, protect me from COVID-19?

  Bipolar ionization (also called needlepoint bipolar ionization) is a technology that can be used in HVAC systems or portable air cleaners to generate positively and negatively charged particles. Provided manufacturers have data to demonstrate efficacy, manufacturers of these types of devices may market this technology to help remove viruses, including…

  • Last published: April 9, 2025

• Will running an evaporative cooler (sometimes known as a "swamp cooler") or whole-house fan help protect me and my family from COVID-19?

  Both evaporative coolers (or "swamp coolers") and whole-house fans can help protect people indoors from airborne transmission of COVID-19 because they increase ventilation with outside air to cool indoor spaces. Evaporative coolers are used in dry climates. They use water to provide cooling and increase relative humidity indoors. When operating…

  • Last published: April 9, 2025

• How should a party producing reformulated gasoline or RBOB make the designation of per gallon or average for the appropriate fuel parameters?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . If filing by paper, the party should submit the Annual Compliance Designation with its first quarter batch reports. If filing electronically, the first batch report transmitted must include the designations which will apply to each subsequent batch for…

  • Last published: June 2, 2025

• Regulation Section 80.1131(b)(4) states that, in the event that the same RIN is transferred to two or more parties, "all such RINs will be deemed to be invalid, unless EPA in its sole discretion determines that some portion of these RINS is valid." What’s the process to determine if a portion of RINs are valid?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . In many circumstances, EPA will be able to determine whether any of the RINs (or particular gallon-RINs within a batch-RIN) are valid from the information submitted to EPA in the RIN generation and transaction reports. Through these reports…

  • Last published: June 3, 2025

• Will an air cleaner or air purifier help protect me and my family from COVID-19 in my home?

  When used properly, air purifiers can help reduce airborne contaminants including viruses in a home or confined space. However, by itself, a portable air cleaner is not enough to protect people from COVID-19. When used along with other best practices recommended by the Centers for Disease Control and Prevention, operating…

  • Last published: July 24, 2025

• I can’t tell if the product I’m interested in is on the list or not. Can you help me?

  List N: Disinfectants for Use Against SARS-CoV-2 View List N, a searchable and sortable list of products for use against SARS-CoV-2, the novel human coronavirus that causes COVID-19. Disinfectant products may be marketed and sold under different brand and product names. To determine whether EPA expects a given product to…

  • Last published: April 9, 2025

• Are there any changes to the registration of disinfectants due to COVID-19?

  List N: Disinfectants for Use Against SARS-CoV-2 View List N, a searchable and sortable list of products for use against SARS-CoV-2, the novel human coronavirus that causes COVID-19. At the federal level, EPA has published guidance on amending product registrations to add claims of efficacy against SARS-CoV-2 , claims of…

  • Last published: April 9, 2025