Pierce Butler

“ Section 3 of the state law requires every carrier of property by motor for hire over public highways of the State to obtain from the Railroad Commission a certificate of convenience and necessity. Section 4 makes it the duty of the commission to regulate the transportation, to prescribe rules for safety of carriers' operations, and to supervise all matters affecting relationships between the carriers and the public. ”

“ As petitioner is not protected in his operation as a common carrier by the proviso, we need not consider to what extent, if at all, the federal Motor Carrier Act superseded the state Motor Truck Law, or any other question presented by petitioner. ”