This site displays a prototype of a “Web 2.0” version of the daily
Federal Register. It is not an official legal edition of the Federal
Register, and does not replace the official print version or the official
electronic version on GPO’s govinfo.gov.
The documents posted on this site are XML renditions of published Federal
Register documents. Each document posted on the site includes a link to the
corresponding official PDF file on govinfo.gov. This prototype edition of the
daily Federal Register on FederalRegister.gov will remain an unofficial
informational resource until the Administrative Committee of the Federal
Register (ACFR) issues a regulation granting it official legal status.
For complete information about, and access to, our official publications
and services, go to
About the Federal Register
on NARA's archives.gov.
The OFR/GPO partnership is committed to presenting accurate and reliable
regulatory information on FederalRegister.gov with the objective of
establishing the XML-based Federal Register as an ACFR-sanctioned
publication in the future. While every effort has been made to ensure that
the material on FederalRegister.gov is accurately displayed, consistent with
the official SGML-based PDF version on govinfo.gov, those relying on it for
legal research should verify their results against an official edition of
the Federal Register. Until the ACFR grants it official status, the XML
rendition of the daily Federal Register on FederalRegister.gov does not
provide legal notice to the public or judicial notice to the courts.
Proposed Rule
Enter a search term or FR citation e.g.
88 FR 38230 FR 78782024-13208USDA09/05/24RULE0503-AA39SORN
Choosing an item from
full text search results
will bring you to those results. Pressing enter in the search box
will also bring you to search results.
Choosing an item from
suggestions
will bring you directly to the content.
You may be interested in this newer document that published on 05/08/2026 with action 'Notification of change to telephonic-only public hearing on a proposed rulemaking.'
The hearing is scheduled to be held on Wednesday, May 27, 2026, at 09:00 a.m. ET, Thursday, May 28, 2026, at 09:00 a.m. ET, and Friday, May 29, 2026, at 09:00 a.m. ET.
Table of Contents
Enhanced Content - Table of Contents
This table of contents is a navigational tool, processed from the
headings within the legal text of Federal Register documents.
This repetition of headings to form internal navigation links
has no substantive legal effect.
Comments are no longer being accepted.
See DATES for details.
Regulations.gov Data
Enhanced Content - Regulations.gov Data
FederalRegister.gov retrieves relevant information about this document
from Regulations.gov to provide users with additional context. This
information is not part of the official Federal Register document.
Section 45Z Clean Fuel Production Credit (REG-121244-23)
Document page views are updated periodically throughout the day and are
cumulative counts for this document. Counts are subject to sampling,
reprocessing and revision (up or down) throughout the day.
Page views
1,163
as of
08/17/2026 at 2:15 am EDT
Other Formats
Enhanced Content - Other Formats
This document is also available in the following formats:
This PDF is FR Doc. 2026-08344 as it appeared on Public Inspection on
04/28/2026 at 8:45 am.
It was viewed
46
times while on Public Inspection.
If you are using public inspection listings for legal research, you
should verify the contents of the documents against a final, official
edition of the Federal Register. Only official editions of the
Federal Register provide legal notice of publication to the public and judicial notice
to the courts under 44 U.S.C. 1503 & 1507.
Learn more here.
Published Document: 2026-08344 (91 FR 23038)
This document has been published in the Federal Register. Use the PDF linked in the document sidebar for the official electronic format.
AGENCY:
Internal Revenue Service (IRS), Treasury.
ACTION:
Notice of proposed rulemaking; notice of hearing.
SUMMARY:
This document provides a notice of public hearing on the notice of proposed rulemaking (REG-121244-23) published in the
Federal Register
on Wednesday, February 4, 2026. These proposed regulations would provide rules for determining clean fuel production credits, including credit eligibility rules, emissions rates, and certification and registration requirements.
DATES:
The hearing is scheduled to be held on Wednesday, May 27, 2026, at 09:00 a.m. ET, Thursday, May 28, 2026, at 09:00 a.m. ET, and Friday, May 29, 2026, at 09:00 a.m. ET.
ADDRESSES:
On Wednesday, May 27, 2026, the public hearing is being held in the Auditorium, at the Internal Revenue Service Building, 1111 Constitution Avenue NW, Washington, DC. Due to security procedures, visitors must enter at the Constitution Avenue entrance. In addition, all visitors must present a valid photo identification to enter the building. Because of access restrictions, visitors will not be admitted beyond the immediate entrance area more than 30 minutes before the hearing starts. Participants may alternatively attend the public hearing by telephone.
On Thursday, May 28, 2026, the morning session will be held in the IRS Auditorium and the afternoon session will be held by telephone only.
On Friday, May 29, 2026, the public hearing will be held by telephone only.
FOR FURTHER INFORMATION CONTACT:
Concerning the proposed regulations, Jennifer Golden or Danielle Mayfield of the Office of Associate Chief Counsel (Energy, Credits, and Excise Tax) at (202) 317-6855 (not a toll-free number); concerning submissions of comments or the public hearing, Publications and Regulations Section at (202) 317-6901 (not a toll-free number) or by email at
publichearings@irs.gov
(preferred).
SUPPLEMENTARY INFORMATION:
The subject of the public hearing is the notice of proposed rulemaking (REG-121244-23) published in the
Federal Register
on Wednesday, February 4, 2026 (91 FR 5160). To accommodate all persons who wished to present oral comments at the public hearing, the public hearing scheduled Thursday, May 28, 2026, has been extended two additional days to begin Wednesday, May 27, and end Friday, May 29. The start time of the hearing has been moved to 09:00 a.m. ET. Friday, May 29, is reserved for oral comments by telephone only.
The rules of 26 CFR 601.601(a)(3) apply to the public hearing. Persons who wished to present oral comments at the public hearing were required to submit an outline of the topics to be discussed as well as the time to be devoted to each topic by April 6, 2026. This due date for requests to testify has now passed. Persons who made timely requests to testify by telephone will receive the telephone number and access codes for the public hearing. A period of 10 minutes will be allotted to each person testifying.
An agenda showing the scheduling of the speakers will be prepared after the deadline for receiving outlines has passed. Copies of the agenda will be available at the public hearing and via the Federal eRulemaking Portal (
www.regulations.gov) under the title of Supporting & Related Material.
Individuals who want to attend the public hearing in person without testifying must send an email to
publichearings@irs.gov
to have their name added to the building access list. The subject line of the email must contain the regulation number (REG-121244-23) and the language “ATTEND In Person.” For example, the subject line may say: Request to ATTEND Hearing In Person for REG-121244-23. Requests to attend the public hearing must be received by 5:00 p.m. ET on May 22, 2026.
Individuals who want to attend the public hearing by telephone without testifying must also send an email to
publichearings@irs.gov
to receive the telephone number and access code for the hearing. The subject line of the email must contain the regulation number (REG-121244-23) and the language “ATTEND Hearing Telephonically.” For example, the subject line may say: Request to ATTEND Hearing Telephonically for REG-121244-23. Requests to attend the hearing must be received by 5:00 p.m. ET on May 22, 2026.
Public hearings will be made accessible to people with disabilities. To request special assistance during a public hearing, please contact the Publications and Regulations Section of
( printed page 23039)
the Office of Associate Chief Counsel (Procedure and Administration) by sending an email to
publichearings@irs.gov
(preferred) or by telephone at (202) 317-6901 (not a toll-free number) by May 21, 2026.
Any additional questions regarding speaking at or attending the hearing may also be emailed to
publichearings@irs.gov.
Oluwafunmilayo A. Taylor,
Section Chief, Publications and Regulations Section, Associate Chief Counsel, (Procedure and Administration).