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Instructions for Form 8933›(Rev. December 2025)›General Instructions

Application of Section 45Q for Certain Carbon Capture Equipment

Instruction 8933 — Instructions to Form 8933, Carbon Oxide Sequestration Credit · 2026-10-03 edition · updated 2026-10-04 · United States

In the case of any equipment placed in service before February 9, 2018, the credit will apply to qualified carbon oxide captured using such equipment before the end of the calendar year in which the Secretary, in consultation with the Administrator of the EPA, certifies that, during the

Effective August 16, 2022, in the case of any equipment placed in service before February 9, 2018, the credit will apply to qualified carbon oxide captured using such equipment before the earlier of January 1, 2023, and the end of the calendar year in which the Secretary, in consultation with the Administrator of the EPA, certifies that during the period beginning after October 3, 2008, a total of 75,000,000 metric tons of qualified carbon oxide have been taken into account in accordance with section 45Q(a), as in effect on the day before February 9, 2018, and section 45Q(a)(1) and (2). See section 45Q(g) as amended by IRA 2022 and Notice 2022-38.

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▸Contents — Instruction 8933 — Instructions to Form 8933, Carbon Oxide Sequestration Credit

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