The Inflation Reduction Act of 2022 (IRA) building sector provisions will save consumers money, improve public health, create good-paying U.S. jobs, and cut building sector emissions. This report explains how federal agencies can effectively implement the IRA’s building provisions, recommends complementary federal policies to accelerate building decarbonization. It also outlines how state policymakers can leverage the new law to reduce building sector pollution, increase building efficiency, and lower consumer energy bills.