This legislative proposal, officially titled the "45Q Repeal Act of 2025," aims to eliminate the federal tax credit for carbon oxide sequestration. This credit, currently codified as Section 45Q of the Internal Revenue Code of 1986, provides financial incentives for capturing and securely storing or utilizing carbon dioxide. The bill's central action involves repealing Section 45Q entirely from the tax code, thereby removing this specific financial incentive for carbon capture and storage activities. This repeal is slated to become effective for taxable years beginning after December 31, 2025. To fully implement this repeal, the bill includes numerous conforming amendments across various other sections of the Internal Revenue Code. These adjustments modify references to Section 45Q in provisions such as the general business credit, clean hydrogen production credit, energy credit, and clean electricity production credit. For instance, it revises language in Section 45Y regarding carbon capture and sequestration equipment to refer to the definition of "qualified carbon oxide" as it existed before the repeal. Other affected sections include those related to advanced energy projects, clean electricity investment credit, and the elective payment of certain credits, all updated to remove or adjust their reliance on the repealed Section 45Q.