This bill reauthorizes and improves the Community Development Financial Institutions (CDFI) Bond Guarantee Program, which helps provide long-term funding to community development financial institutions that serve underserved and distressed communities. The legislation makes three key changes: it increases the minimum bond guarantee amount to $25 million while capping total annual guarantees at $1 billion, and it extends the program's authorization for four years beyond the bill's enactment. The bill also requires the Treasury Secretary to report to Congress within one year and again within three years on how effectively the program is achieving its goals of expanding economic opportunity and community development investments. This legislation primarily affects CDFIs and the communities they serve, including low-income and underserved populations across the United States.