Mass Timber Federal Buildings Act of 2025

S 1094, the Mass Timber Federal Buildings Act of 2025, requires U.S. federal agencies (like the General Services Administration and Department of Defense) to prioritize using U.S.-made mass timber products in new public building construction. It mandates that agencies give contract preference to mass timber sourced from domestic facilities and responsibly harvested U.S. forests, with specific priority for products from forest restoration practices, wildfire prevention efforts, or underserved forest owners. The bill also requires a lifecycle assessment of mass timber buildings' environmental impact and a public report within 180 days of enactment. This directly affects federal building projects and U.S. timber producers meeting the defined sourcing criteria.