Columbia subject headings:
Canada--Politics and government--1945-
Transportation and state--Canada.
Transportation, Automotive--Law and legislation--Canada.
Transportation--Canada.
Harvard subject headings:
Federal government--Canada
Transportation and state--Canada.
Transportation, Automotive--Canada.
Transportation, Automotive--Law and legislation--Canada.
Princeton subject headings:
Federal government--Canada.
Transportation, Automotive--Law and legislation--Canada.