Carbon dioxide emissions stemming from the U.S. Capitol’s coal-burning power plant must be reduced under an amendment to a broad global warming bill adopted this week by a House committee.

The amendment to the Transportation Energy Security and Climate Change Mitigation Act of 2007, introduced by D.C. Del. Eleanor Holmes Norton, a Democrat, would require the Architect of the Capitol to “install technologies for the capture and storage or use of carbon dioxide emitted from the Capitol Power plant as a result of burning coal.” The full legislation won approval Wednesday from the Committee on Transportation and Infrastructure.