Mass Timber Federal Buildings Act of 2026

This bill directs federal agencies to prioritize the construction of public buildings using domestically sourced mass timber products. It requires the General Services Administration and the Department of Defense to give preference to wood harvested from U.S. forests and produced at facilities located within the country. The legislation further mandates that these wood products come from responsibly managed sources, such as forests undergoing restoration or those managed to prevent wildfires, while also supporting underserved forest owners. Additionally, the bill requires an independent lifecycle assessment of these new buildings to evaluate their environmental impact and a subsequent report to be submitted to Congress.