delivered the opinion of the Court.
A statute of California, Ch. 390, Statutes of 1933, p. 1011, as amended by Ch. 665, Statutes of 1935, p. 1833, defines a transportation agent as one who “sells o.r offers to sell or negotiate for” transportation оver the public highways of the state,- § 2, and requires every such agent to procure a license from the State Railroad Commission authorizing him so to act. By §§ 6, T, and 8, prerequisites to the liсense are determination by the Commission of the applicant’s fitness to exercise the licensed privilege, the payment of a license fee of $1.00, and the filing by the applicant of a bond in the sum of $1,000, conditioned upon the faithful performance of the transportation contracts which he negotiates. By § 16 any person acting as a transpоrtation agent without a license is guilty of a misdemeanor. The question for decision is whether the statutory exaction of the license and bond infringes the Commerce Clause of the Cоnstitution when applied to one who negotiates for the transportation interstate of passengers over the public highways of the state.
Respondent was convicted of violation of the statute by arranging for the transportation by motor vehicle, of
■ Congress has not undertaken to regulate the acts for which respondent was convicted or the interstate transportation to which they relаted. The Motor Carrier Act of 1935, 49 Stat. 543, 49 U. S. C. §§ 301-327, which applies to certain classes of common and contract interstate carriers by motor vehicle, excludes from its operation the casual or occasional transportation by motor vehicle of passengers in interstate commerce by persons not engaged in such transportation as a regular occupation or business, § 303 (b) (9). Hence we are concerned here only with the constitutional authority of the state to regulate those who, within the state, aid or participate in, a form of interstate commerce over which Congress has not undertaken to exercise its regulatory power.
The statute is not a revenue measure. Cf. Texas Transport Co. v. New Orleans,
As this Court has often had occasion to point oqt, the Commerce Clause, in conferring on Congress power to regulate commerce, did not' wholly withdraw from the states the power to regulate matters of local concern with respect to which Congress has not exercised' its power; even though the regulation- affects interstate commerce. Ever since Willson v. Black Bird Creek Marsh Co.,
A state may license trainmen engaged in interstate commerce in order to insure their skill and fitness. Smith v. Alabama,
The present case is not one of prohibiting interstate commerce or licensing it on conditions which restrict or obstruct it. Cf. Crutcher v. Kentucky,
Fraudulent or unconscionable conduct of those so engaged which is injurious to their patrons, is peculiarly a subject of local cоncern and the appropriate subject of local regulation. In every practical sense regulation of such conduct is beyond the effective reach of Congressional action. Unless some measure of local control is permissible, it must go largely unregulated. In any case, until Congress undertakes its regulation, we can find no adequate bаsis for saying that the Constitution, interpreted as a working instrument of government, has foreclosed regulation, such as the present, by local authority.
In Di Santo v. Pennsylvania, this Court took a different view, Fоllowing what it conceived to be the reasoning of McCall v. California,
If there is authority in the state, in the exercise of its police power, to adopt such regulations affecting interstate transportation, it must be deemed to possess the power to regulate the negotiations for such transportation where they affect matters of local concern which are in other' respects within state regulatory power, and where thе regulation does not infringe the national interest in maintaining the free flow of commerce and in preserving uniformity in the regulation of the commerce in matters of national cоncern. See Hartford Accident & Indemnity Co. v. Illinois,
The decision in the Di Santo case was. a departure from this principle which has been recognized since Cooley v. Board of Port Wardens, supra. It cannot be reconciled with later decisions of this Court which have likewise recognized and applied the principle, and it can no longer be regarded as controlling authority.
Reversed.
