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Interstate Commerce - Constitutionality Of State Weight And Size Limitations As Applied To Interstate Motor Carriers, Paul G. Kauper

Michigan Law Review

A South Carolina statute limited the width of motor trucks (including semi-trailers) to 90 inches and their gross weight to 20,000 pounds. The validity of this legislation was challenged before a three-judge federal court on three grounds: (1) that it was a denial of due process under the Fourteenth Amendment; (2) that the power of the states to regulate size and weight of motor vehicles used in interstate commerce had been superseded by the Federal Motor Carrier Act of 1935; (3) that the statute as applied to vehicles used by interstate motor carriers placed an unreasonable burden upon interstate commerce. …