Secure U.S. Leadership in Space Act of 2025

HR 3142, the Secure U.S. Leadership in Space Act of 2025, amends the federal tax code to provide spaceports with financial treatment similar to airports. It specifically allows spaceports to qualify for tax-exempt bonds used for infrastructure development and creates special rules for government leases of spaceport land. The bill defines "spaceport" broadly to include facilities for spacecraft manufacturing, launch services, reentry operations, and cargo transport. These changes directly benefit spaceport developers and operators seeking tax advantages for building and operating commercial space infrastructure. The policy change modifies existing tax code sections (142, 146, 149) to exclude spaceport bonds from certain state tax limits and federal guarantee restrictions.