Notice 2026-1, page 365.

This notice provides interim guidance, pending the issuance of forthcoming proposed regulations, relating to the credit

Finding Lists begin on page ii.

for carbon oxide sequestration under section 45Q (§ 45Q credit) of the Internal Revenue Code to reflect the Environmental Protection Agency’s (EPA) proposed regulations to amend the Greenhouse Gas Reporting Program to remove reporting obligations imposed under subpart RR of 40 CFR part 98 (subpart RR). See 90 FR 44591 (Sept. 16, 2025). Specifically, this notice provides a safe harbor for determining eligibility for the § 45Q credit for qualified carbon oxide that is captured and disposed of in secure geological storage (and carbon oxide described in § 1.45Q-2(h)(5)) and not used as a tertiary injectant in a qualified enhanced oil or natural gas recovery project during calendar year 2025 in the event the EPA does not launch the electronic Greenhouse Gas Reporting Tool for filers to prepare and submit information required under subpart RR for reporting year 2025 by June 10, 2026.