delivered the opinion of the Court.
' This suit was brought by Colorado against the United States, in the federal court for that State, to enjoin and set aside, in part, an order of the Interstate Commerce Commission issued February 11, 1924. The order is a certificate that present and future public convenience and necessity permit the abandonment by the Colorado & Southern Railway Company, six months thereafter, of a branch line located wholly in that State. The certificate was issued under Interstate Commerce Act, § 1, pars. 18-20, as amended by Transportation Act, 1920, c. 91, § 402, 41 Stat. 456, 477.
The Company is a .Colorado corporation. It owns and operates in intrastate and interstate commerce a railroad system located partly in Colorado and partly in other States. The branch was constructed under the authority of Colorado’ and was acquired by the Company under its authority. The line is narrow gauge. It is now physi *160 cally detached from other lines of the Company; but it is operated in both intrastate and interstate commerce as a part of the system by means of connections with other railroads. The certificate was granted on the ground that the local conditions are such that public convenience and necessity do not require continued operation; that for years operation of the branch had resulted in large deficits; that future operation would likewise result in large deficits; that the operating results of the branch are reflected in the Company’s accounts; that it would have to make good the deficits incurred in operating the branch; and that thus continued operation would constitute air undue burden upon interstate commerce. Abandonment of Branch Line by Colorado & Southern Ry., 72 I. C. C. 315; 82 I. C. C. 310; 86 I. C. C. 393.
The application for the certificate was filed September 1, 1921. Before any hearing thereon, the State moved that the proceeding be dismissed on the ground, among others, that, as the branch was wholly intrastate, the Commission was without jurisdiction of the. application. This objection was overruled. Thereafter, the State opposed, on the merits, the granting of the certificate. The case was first heard before Division 4 of the Commission on exceptions filed by the- Company to the examiner’s proposed report. On July 28, 1922, the applicacion was denied, with leave to renew it “ if the improvement in operating results, confidently anticipated by protestants, should not materialize.” 72 I. C. C. 315. On May 19, 1923, the Company filed a petition praying that the case be reopened and set for further1 hearing. Division 4 heard it. On September 24, 1923, an order was entered that the certificate issue. 82 I. C. C. 310. A hearing before the full Commission was then sought by the State and the other protestants. Compare
United States
v.
Abilene & Southern Ry. Co.,
Meanwhile, this suit had been begun. The Commission and the Company intervened as defendants. On August 19, 1924, a decree dismissing the bill on the merits was entered, upon final hearing, without opinion. A motion for a suspension of the order of. the Commission pending an appeal was denied. The case is here on direct appeal under the Act of October 22, 1913, c. 32, 38 Stat. 208, 220. The order is assailed as void insofar as it authorizes abandonment and discontinuance of operation in intrastate traffic. The remedy pursued is the appropriate one. See
Texas
v.
Eastern Texas R. R. Co.,
First.
The main contention of the State is that the Commission lacks power to authorize the Company to abandon, as respects intrastate traffic, a part of its line lying- wholly within the State. The argument is this. While a railroad cannot, in the absence of express statutory provision or contract, be compelled by a State to continue operating its-lines at a loss when there is no reasonable prospect of future profit, and may, therefore, without such consent, abandon all lines within the State,
Brooks-Scanlon Co.
v.
Railroad Commission,
The argument rests upon a misconception of the nature of the power exercised by the Commission in authorizing abandonment under paragraphs 18-20. The certificate issues, not primarily to protect the railroad, but to protect interstate commerce from undue burdens or discrimination. The Commission by its order removes an ob *163 struction which would otherwise prevent the railroad ■from performing its federal duty. Prejudice to interstate commerce may be effected in many ways. One way is by excessive expenditures from the common fund in the local interest, thereby lessening the ability of the carrier properly to serve interstate commerce. Expenditures in the local interest may be so large as to compel the carrier to raise 'reasonable interstate rates, or to abstain from making an appropriate reduction of such rates, or to curtail interstate service, or to forego facilities needed in interstate commerce. Likewise, excessive local expenditures may so weaken the financial condition of the carrier as to raise the cost of securing capital required for providing transportation facilities used in the service, and thus compel an increase of rates. Such depletion of the common resources in the local interest may conceivably be effected by continued operation of ,an intrastate branch in intrastate commerce at a large loss.
The sole objective of paragraphs 18-20 is the regulation of interstate commerce. Control is exerted over intrastate commerce only because such control is a necessary incident of freeing interstate commerce from the unreasonable burdens, obstruction or unjust discrimination which are found to result from operating a' branch at a large loss. Congress has power to authorize abandonment, because the State’s power to regulate and promote intrastate commerce may not be exercised in such a way as to prejudice interstate commerce. The exertion of the federal power to prevent prejudice to interstate commerce so arising from the operation of a branch in intrastate commerce is similar to that exerted when a State establishes intrastate rates so low that intrastate traffic does not bear its fair share of the cost of the service,
Railroad Commission of Wisconsin
v.
Chicago, Burlington & Quincy R. R. Co.,
This railroad, like most .others, was chartered to1 engage in both intrastate and interstate commerce. The same instrumentality serves both. The two services are inextricably intertwined. The extent and manner in which one is performed, necessarily affects the performance of the other. Efficient performance of either is dependent upon the efficient performance of the transportation system as a. whole. ..Congress did not, in the respect here Under consideration, assume exclusive regulation of the common ■ instrumentality, as it did in respect to safety coupling devices. Compare
Southern Ry. Co.
v.
United States,
Recognition of the effect upon interstate commerce of the use of the same" instrumentality in intrastate com
*165
merce
is manifested also in other provisions of Transportation Act, 1920. It is a reason for the exclusive jurisdiction conferred upon the Commission by § 20a over the issuance of securities. Compare
Venner
v.
Michigan Central R. R. Co., ante,
p. 127. It is the ground upon which the validity of the recapture clause, as applied to surplus profits derived from intrastate operations, was sustained in
Dayton-Goose Creek Ry.
v.
United States,
The exercise of'federal power jin .authorizing abandonment is not an invasioii of a field reserved to the State. The obligation assumed" by the corporation under its charter of providing intrastate service on every part of its line within the State is subordinate to the performance by it of its federal duty, also, assumed, efficiently to render transportation services in interstate commerce. There is no contention here that the railroad by its charter agreed in terms to continue to operate this branch regardless of loss. Compare
Railroad Commission,
v.
Eastern Texas R. R. Co.,
iSecond.
The State contends further that the order is void, so far as it relates to intrastate traffic, because essential findings were not made and, also, because essential findings made were not supported by evidence.
The Chicago Junction Case,
Before examining the specific objections, the nature of the determination to be made by the Commission upon an application-for leave to .abandon should be further con *167 sidered. As every projected abandonment of any part of a railroad engaged in both interstate and intrastate commerce may conceivably involve a conflict between state and national interests, the consent of the Commission must be obtained by thp railroad in every case. To ensure due consideration of the local interests, Congress provided that a copy of every application must be promptly filed with the Governor of the State directly affected, that notice of the application must be published in some local: newspaper, and that the appropriate state authorities should have “ the right to make before the Commission such representations as they may deem just and proper for preserving the rights and interests of their people and the States, respectively, involved in such proceedings.” In practice, representatives of state regulatory bodies sit, sometimes, with the representatives of the Commission at hearings upon the application for a certificate. Occasionally, the Commission leaves the preliminary enquiry to the state body. And always consideration is given by the Commission to the representations of the state authorities. 1
While the constitutional basis of authority to issue the certificate of abandonment is the power of Congress to regulate interstate commerce, the Act does not make issuance of the certificate conditional upon a finding that continued operation will result in discrimination against
*168
interstate commerce, or that it will result in a denial of just compensation for the use in intrastate commerce of the property of the carrier within the State, or that it will result in a denial of such compensation for the property within the State used in commerce intrastate and interstate. The sole test' prescribed is that abandonment be consistent with public necessity and convenience. In determining whether it is, the Commission must have regard to the needs of both intrastate and interstate commerce. For it was a purpose of Transportation Act, 1920, to establish and maintain adequate service for both.
Wisconsin Railroad Commission
v.
Chicago, Burlington & Quincy R. R. Co.,
It is rare that the application for leave to abandon actually involves a conflict between the needs of interstate and of intrastate commerce. In many cases, it is clear that the extent of the whole traffic, the degree of dependence. of the communities directly affected upon the particular means of transportation, and other attendant conditions, are such that the carrier may not- .justly be required to continue to bear the financial loss necessarily entailed by operation. 2 In some cases, although the vol *169 ume of the whole traffic is small, the question is whether abandonment may justly be permitted, in view of the fact that it would subject the communities directly affected to serious injury while continued operation would impose a relatively light burden upon a .prosperous carrier. 3 The problem and the process are substantially the same in these cases as where' the conflict is between the needs of intrastate and of interstate commerce. Whatever the precise nature of these conflicting needs, the determination is made upon a balancing of the respective interests— the effort being to decide what fairness to all concerned demands. In that balancing, the fact of demonstrated prejudice to interstate commerce and the absence of earnings adequate to afford reasonable compensation are, of course, relevant and may often be controlling. But the Act does not make issuance of the certificate dependent upon.a specific finding to that effect.
An examination of the extensive record and of the three opinions of the Commission convinces us that no relevant fact was ignored, that there was ample evidence to support the facts found, and that the judgment of the Commission was pot improperly influenced by the offer to lease the line to the protestants at a nominal rental. The case at bar is unlike Texas v. Eastern Texas R. R. Co., 258 U. S. 204. There, the railroad was permitted to be relieved only from continuing operations in interstate .commerce. It was being operated independently, and . not as a branch of any railroad engaged in interstate commerce. *170 Losses incurred in its operation would not be reflected in the accounts of any interstate carrier; and no interstate carrier would have had to make good deficits so incurred. Its continued operation could not burden or prejudice interstate commerce, for the' Commission in issuing its certificate had adjudged that public necessity and convenience did not demand the continuance .of its interstate services.
Affirmed.
Notes
See e. g., Abandonment, etc., by Southern Pacific Co., 72 I. C. C. 404.
Compare Application of Green Bay & Western R. R. Co., 70 I. C. C. 251; Abandonment of White-Cloud Big Rapids Branch, etc., 72 I. C. C. 303; Proposed Abandonment of Lincoln Branch, etc., 94 I. C. C. 624, with Abandonment, etc., Oregon Trunk Ry., 72 I. C. C. 679; Abandonment of Branch Line by Pere Marquette Ry., 90 I. C. C. 100; Abandonment, etc., by Central New England Ry. Co., 941. C. C. 405; Abandonment, etc., by Coudersport & Port Albany R. R. Co., 991. C. C. 310; Abandonment, etc., by Chicago & Northwestern Ry. Co., 105 I. C. C. 273.
