Mass Timber Federal Buildings Act of 2025

The Mass Timber Federal Buildings Act of 2025 would create a federal contracting preference to prioritize public buildings that use innovative wood products (mass timber) in their construction. Procurement would favor projects that source innovative wood products from United States-based facilities and from U.S. forestlands, provided those sources are “responsible” (certified or from jurisdictions with robust forest management practices). The bill also directs consideration of restoration practices, wildfire risk–reducing forest management, and support for underserved forest owners (including Tribally owned and small family forests). In addition, the act requires a cradle-to-gate, whole-building lifecycle assessment of new public buildings employing innovative wood products, with results and a public report due within 180 days of enactment and completion. The Administrator of General Services and, where applicable, the Secretary of Defense (reflecting inclusion of military installations as public buildings) would oversee these provisions. In short, the bill aims to expand the use of mass timber in federal construction, promote domestic and responsibly sourced wood products, tie procurement to forest restoration and wildfire prevention efforts, and generate transparency through a mandatory lifecycle assessment and public reporting.