H.R. 3474 Reported by committee Energy

Federal Mechanical Insulation Act

To clarify that the installation of mechanical insulation property is an energy or water efficiency measure that may be used in Federal buildings for purposes of section 543(f) of the National Energy Conservation Policy Act, and for other purposes.

  1. Introduced
  2. Committee
  3. Passed House
  4. Passed Senate
  5. To President
  6. Became law
Sponsor Rep. Weber, Randy K. Sr. [R-TX-14] Introduced May 15, 2025 Cosponsors 36 (18 D, 18 R) Latest action February 4, 2026

Summary

Federal Mechanical Insulation Act
The bill directs federal agencies to identify energy saving and water saving measures, such as the installation of mechanical insulation property, in certain annual energy and water evaluations of federal buildings. Thus, the bill allows the installation of mechanical insulation property (e.g., thermal insulation) to be considered an energy or water efficiency measure that may be used in federal buildings under the National Energy Conservation Policy Act.

Summary by the Congressional Research Service, Library of Congress.

Congress.gov

Actions

  1. Feb 4, 2026 Placed on the Union Calendar, Calendar No. 411.
  2. Feb 4, 2026 Reported by the Committee on Energy and Commerce. H. Rept. 119-481.
  3. Dec 3, 2025 Ordered to be Reported by the Yeas and Nays: 51 - 0.
  4. Dec 3, 2025 Committee Consideration and Mark-up Session Held
  5. Nov 19, 2025 Forwarded by Subcommittee to Full Committee by Voice Vote.
  6. Nov 19, 2025 Subcommittee Consideration and Mark-up Session Held
  7. May 15, 2025 Referred to the Subcommittee on Energy.
  8. May 15, 2025 Referred to the House Committee on Energy and Commerce.
  9. May 15, 2025 Introduced in House

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