; and (2) by adding at the end the following: (e) Funding of program Activities carried out under this section shall be funded only through appropriations approved by Congress and not through user fees or other funds. . (c) Report (1) In general Not later than 2 years after the date of the enactment of this Act, the Secretary of Transportation, in consultation with the Secretary of Defense, the Administrator of the National Aeronautics and Space Administration, the Secretary of Commerce, and the heads of other appropriate agencies of the Government, shall submit to Congress a report that— (A) evaluates the demand for space transportation services, including the civil, national security, and commercial space transportation needs of the United States and international commercial markets; (B) provides legislative, regulatory, and policy recommendations to ensure robust and resilient space transportation capabilities in support of the national space policy; (C) examines a range of long-term funding options and related considerations for space transportation infrastructure projects; and (D) provides an assessment of international space transportation capabilities and investments, including recommendations for maintaining United States competitiveness and developing an international space transportation network. (2) Updates Not later than 6 years after the date of the enactment of this Act, and every 4 years thereafter, the Secretary of Transportation shall— (A) update the report submitted under paragraph (1)