Columbia subject headings:
Harvard subject headings:
Emergency transportation--Planning--Congresses.
Energy policy--United States--Congresses
Transportation--Energy consumption--United States--Congresses.
Transportation--United States--Planning--Congresses
Princeton subject headings:
Emergency transportation--Planning--Congresses.
Energy policy--United States--Congresses.
Transportation--Planning--United States--Congresses.
Transportation--United States--Energy consumption--Congresses.