Columbia subject headings:
Trucks--Sizes--Safety regulations--United States--Congresses.
Trucks--Weight--Government policy--United States--Congresses.
Harvard subject headings:
Conference papers and proceedings
Trucks--Sizes--Safety regulations--United States--Congresses.
Trucks--Weight--Government policy--United States--Congresses.
Princeton subject headings:
Trucks--Sizes--Safety regulations--United States--Congresses.
Trucks--Weight--Government policy--United States--Congresses.