Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Guidance
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Fuels Registration, Reporting, and Compliance Help
  3. Help

Frequent Questions about Fuels Registration, Reporting, and Compliance Help

View frequently asked questions and answers below by topic or go to the search page to see ALL questions.

E15 and Fuels & Fuel Additives (FFARs)

  • If I certify a nonroad flexible-fuel engine under 40 CFR Part 1054, are owners and operators prohibited from using gasoline-ethanol blended fuels containing greater than 10 volume percent ethanol under 80.1504(a)(1) in my nonroad flexible-fuel engine?


View More E15 and FFARs →

Diesel Sulfur Program

  • A tank truck common carrier picks up a load of ULSD at a Shell terminal and delivers it to a Flying J truck stop. The carrier only provides a transportation service, does that carrier have any registration or reporting duties?

  • My company currently sells distillate blendstocks. Can we continue to sell blendstocks given the new regulations?


View More Diesel Sulfur Program →

Gasoline Sulfur Program

  • A refiner produces a batch of gasoline at its refinery. It collects a sample of the gasoline and conducts certification testing. The sulfur content test result is less than the 80 ppm refinery level standard. The gasoline is then moved to another tank wit

  • Footnote b of Table IV.C.-2 of the preamble is inconsistent with the regulations at § 80.216(f). The regulations clearly state that the corporate pool average standards do not apply if a refiner's production volume is mostly GPA gasoline. If the refiner/

  • What is the Tier 2 Vehicle & Gasoline Sulfur Program?


View More Gasoline Sulfur Program →

Other

  • 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.

  • 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

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


View More Other →

Reformulated Gasoline & Anti-Dumping

  • The regulations require that if "refiners, importers, and oxygenate blenders" supplying a covered area do not complete a survey for that area, then the covered area would be deemed to have failed. Would the subsequent ratchet also apply to "suppliers" to

  • Will product codes, such as are currently in use by pipelines, or fuel descriptions (simple, complex, RBOB), in place of minimums and maximums, be sufficient for compliance with the product transfer document requirements?

  • Does EPA know where the industry can purchase a standard with the list of aromatic analytes shown in method A?


View More RFG & Anti-Dumping →

Registration

  • Does EPA consider it a conflict of interest for a third-party company to assist a group of renewable fuel producers and importers of renewable fuel to help meet the requirements of the re-registration and engineering review pursuant to section 80.1450?

  • Once I register my fuel for the RFS2 program under §80.1450, do I still need to register my fuel under 40 CFR Part 79?

  • Under "Business Activities" on the Company Details CDX web page, what does "Small Blender" mean?

  • Is the licensed professional engineer conducting the engineering review required to perform the site visit in person, or can they delegate the site visit to another person who maybe assisting them in the engineering review?


View More Registration →

Reporting

  • 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

  • I haven't seen a reference to the EPA CDX system. Is the CDX system already established or can we submit reports in our choice of electronic formats?

  • We assume that a terminal operator who stores gasoline for a terminalling customer is responsible for receiving transfer documentation on RFG and conventional gas moved into the terminal for the customer. The terminal then records and stores copies of the


View More Reporting →

Registration & Reporting under 40 CFR 79

  • What is the small business exemption and how do I know if I qualify?

  • How do I submit forms to EPA?

  • Am I required to contribute to health effects testing? If so, what are my obligations?

  • How long will it take me to complete the forms?

  • Which fuels require registration?

  • I have already registered my fuel and/or additive. What are my ongoing obligations?

  • Which fuels are exempt?


View More Registration & Reporting →

Renewable Fuel Standard (RFS1)

  • We are importers who import ethanol without denaturant, but with the intent to use it as motor fuel. When the RIN is generated, we maintain ownership of the ethanol, but we do not have custody and we do not add the denaturant. Would we include our company

  • Regulation Section 80.1126(d)(1), which says "must," seems in conflict with Section 80.1126(d)(2) which says "may". Is the correct reading that any volume of renewable fuel that leaves a producer's gate on or after 9/1/07 MUST have RINs assigned?

  • Does regulation Section 80.1128(a)(4) allow a marketer to change the K code from 1 to 2 and then not transfer the RIN with the renewable fuel as long as he sells the RINs to anyone by the end of the quarter?


View More Renewable Fuel Standard (RFS1) →

Renewable Fuel Standard (RFS2)

  • Where can I find more information on biofuel subsidies?

  • For a transfer in ownership of a volume of renewable fuel, may a party include the applicable product transfer document (PTD) language required at §80.1453(a)(12) on an accompanying PTD for RINs assigned to that renewable fuel as described in §80.1453(a

  • Will current canola based biodiesel production fall under the grandfathering provisions of the RFS2 regulations?

  • How do I find a listing of all obligated parties pertaining to the new RFS2 Program?


View More Renewable Fuel Standard (RFS2) →

Fuels Registration, Reporting, and Compliance Help

  • Registration
    • New Registrations
    • Updating Registrations
    • Job Aids for Registration
    • System Updates
  • Reporting
    • Who Must Report
    • Systems Information
    • Reporting Deadlines
    • Resubmitting or correcting reports
  • Public Data & Registration Lists
    • Gasoline Programs
    • Part 79 Registered Fuels & Fuel Additives
    • Part 80 Registered Companies & Facilities
    • Renewable Fuel Standard
  • Help
    • Searchable Help Index
    • Fuels Program Frequent Questions
Contact Us about Fuels Registration, Reporting, and Compliance Help
Contact Us about Fuels Registration, Reporting, and Compliance Help to ask a question, provide feedback, or report a problem.
Last updated on August 19, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.