Hugo Black

“ It is urged that without power to impose punishment by suspension states will be without appropriate remedies to enforce their laws against recalcitrant motor carriers. We are not persuaded, however, that the conventional forms of punishment are inadequate to protect states from overweighted or improperly loaded motor trucks. Moreover, a Commission regulation requires motor carriers to abide by valid state highway regulations. ”

“ The respondent Hayes Freight Lines, Inc. is such a carrier transporting goods to and from many points in Illinois and seven other states. [1] This extensive interstate business is done under a certificate of convenience and necessity issued by the Interstate Commerce Commission under authority of the Federal Motor Carrier Act. [2] Hayes also does an intrastate carrier business in Illinois under a certificate issued by state authorities. Illinois has a statute which limits the weight of freight that can be carried in commercial trucks over Illinois highways ”