In addition to these direct funding opportunities, federal agencies have begun to demand lower-emissions materials for their infrastructure projects.
Biden's 2021 executive order created the Buy Clean Initiative, which prioritizes using low-carbon, American-made construction materials in federal projects. Putting $630 billion in annual federal spending on the line—plus even more in state government spending—has pressured greener practices among U.S. manufacturing companies.
After years of developing and testing low-emissions material requirements, the General Services Administration released official standards in December 2023 for asphalt, concrete, glass, and steel. The month before, the agency also announced plans to invest $2 billion across more than 150 federal projects utilizing these lower-emission products. The GSA estimates that incorporating these lower-carbon materials will reduce the carbon emissions from these projects by tens of thousands of metric tons.
Throughout 2023, the GSA and other agencies announced several high-profile projects using low-carbon procurement standards, including the Department of Homeland Security's new headquarters and the Alexander Hamilton U.S. Custom House in New York City.
The GSA set the first "Buy Clean" standards for concrete and asphalt in March 2022; by December, it had awarded a concrete contract based on the new concrete standards.
GSA drafted more comprehensive requirements by May 2023, setting standards for carbon emissions for concrete/cement, asphalt, steel, and glass. Following the release, the agency ran a six-month pilot program applying the requirements to 11 federal projects, including new construction, land port of entry, modernization, and paving projects. The value of affected materials across these projects totaled around $300 million.
In fall 2022, the Department of Transportation released its Buy Clean policies, another major feat considering that transportation comprises another near-third of greenhouse gas emissions. By October, the department had distributed $7.1 million to state DOTs to identify ways to reduce emissions in highway construction, with a focus on sustainable pavements. Other agencies, such as the Federal Emergency Management Agency and the Department of Housing and Urban Development, have also readily incorporated low-carbon materials into their projects.
By encouraging green manufacturing and creating demand for low-emission materials, these federal programs are forging the way to greener U.S. industrial production.
Story editing by Shannon Luders-Manuel. Copy editing by Paris Close.