Columbia subject headings:
Federal aid to transportation--United States.
Highway law--United States.
Local transit--Law and legislation--United States.
Roads--Finance--Law and legislation--United States.
Transportation, Automotive--Law and legislation--United States.
Transportation--Finance--Law and legislation--United States.
United States. Transportation Equity Act for the 21st Century.
Harvard subject headings:
Federal aid to transportation--United States.
Highway law--United States.
Local transit--Law and legislation--United States
Roads--Finance--Law and legislation--United States
Transportation, Automotive--Law and legislation--United States.
Transportation--Finance--Law and legislation--United States
United States. Transportation Equity Act for the 21st Century.
Princeton subject headings:
Federal aid to transportation--United States.
Highway law--United States.
Local transit--Law and legislation--United States.
Roads--Finance--Law and legislation--United States.
Transportation, Automotive--Law and legislation--United States.
Transportation--Finance--Law and legislation--United States.
United States. Transportation Equity Act for the 21st Century