US Federal 2025-2026 Regular Session

US Federal House Bill HB3474

Introduced
2/4/26  
Introduced
5/15/25  
Refer
5/15/25  
Refer
5/15/25  

Caption

Federal Mechanical Insulation Act

Summary

HB 3474, titled the Federal Mechanical Insulation Act, would amend the National Energy Conservation Policy Act to expressly recognize the installation of mechanical insulation property as an eligible energy- or water-efficiency measure for federal buildings. The bill defines “mechanical insulation property” as insulation materials, facings, and accessory products installed in connection with a mechanical system, provided they meet or exceed the applicable ASHRAE Standard 90.1 requirements and reduce energy loss from the system. The bill also updates the federal comprehensive energy and water evaluation process to specifically include identification of energy- and water-saving measures, including mechanical insulation property where applicable. In practical terms, this would make it clearer for federal agencies and building managers that mechanical insulation can be counted and considered in energy-saving planning, audits, and retrofit decisions under section 543(f) of the Act.

Impact

The bill would amend 42 U.S.C. 8253(f) to add a new statutory definition and to broaden the scope of measures identified in federal energy and water evaluations. Its effect is limited to federal buildings and federal energy-management requirements, but it could influence procurement, retrofit planning, and compliance practices by making mechanical insulation an explicitly recognized efficiency measure. The bill does not create a new program or mandate a specific project; rather, it clarifies eligibility and evaluation criteria within existing federal energy conservation law.

Sentiment

Based on the bill text and available context, the measure appears to have broad bipartisan support and little visible opposition. The sponsor list includes members from both parties, suggesting the bill is framed as a technical, practical energy-efficiency clarification rather than a partisan policy change. No committee transcript or recorded votes were provided, and the bill was placed on the Union Calendar, indicating it advanced through committee without documented controversy in the available materials.

Contention

No specific points of contention are reflected in the provided record. If any debate exists, it would likely center on whether the bill is merely a clarifying technical amendment or whether explicitly naming mechanical insulation could affect federal spending, procurement standards, or future energy-efficiency interpretations. However, the available context does not show organized opposition, disputed language, or recorded objections from members.

Companion Bills

No companion bills found.

Previously Filed As

US SB4312

Federal Mechanical Insulation Act of 2026

US HB2463

Mechanical Insulation Installation Incentive Act of 2025

US HB4690

Reliable Federal Infrastructure Act

US HB1343

Federal Broadband Deployment Tracking Act

US A09479

Makes technical changes to the mechanical insulation energy savings program.

US S08753

Makes technical changes to the mechanical insulation energy savings program.

US HB1355

Weatherization Enhancement and Readiness Act of 2025

US HB3699

Energy Choice Act

US HB1665

Deploying Infrastructure with Greater Internet Transactions And Legacy Applications Act DIGITAL Applications Act

US HF2549

A bill for an act requiring mechanical insulation energy audits of state buildings.

Similar Bills

No similar bills found.