Notice 2026-50, page 242.

This notice provides interim guidance, pending the issuance of regulations, relating to the credit for carbon oxide sequestration under section 45Q of the Internal Revenue Code to reflect the Environmental Protection Agency’s proposed regulations to amend the Greenhouse Gas Reporting Program to remove reporting obligations imposed under subpart RR of 40 CFR part 98. See 90 F.R. 44591 (Sept. 16, 2025). This notice modifies and amplifies Notice 2026-1 by expanding the scope of the safe harbor provided in Notice 2026-1 to include qualified carbon oxide that is used as a tertiary injectant in a qualified enhanced oil or natural gas recovery project and the determination of the amount of qualified carbon oxide subject to recapture. This notice also extends the applicability date of the safe harbor provided in Notice 2026-1.