delivered the opinion of the Court.
This case presents the questions of the effect of a determination by the Interstate Commerce Commission, for the purposes of the Railway Labor Act, that the respondent is not an interurban electric railway, and of the scope of judicial review of that determination.
The Railway Labor Act, which applies to railroads engaged in interstate commerce, excepts any “interurban” electric railway unless it is operating as a part of a general steam-railroad system of transportation.
1
The Interstate Commerce Commission is “authorized and directed upon request of the Mediation Board or upon complaint of any party interested to determine after hearing whether any line operated by electric power” falls within the exception. At the request of the Mediation Board, the Interstate Commerce Commission after hearing determined that the lines of respondent, the Utah Idaho Central Railroad Company, do not constitute an interurban electric railway. 214 I. C. C. 707. The Mediation Board ordered respondent to post the formal notice prescribed by § 2, Eighth, of the Railway Labor Act.
2
Respondent did not comply. Failure to publish the notice subjects “the carrier, officer or agent offending” to criminal penalties.
3
Respondent, insisting that its line is an interurban electric railway and thus excepted from the Railway Labor Act, and alleging the invalidity of the Act, brought this suit against the United States Attorney for the District of
The District Court took jurisdiction, permitted respondent to try the question
de novo,
decided that respondent was an interurban electric railway, and granted a permanent injunction. The Circuit Court of Appeals affirmed.
As respondent, however characterized, is engaged in interstate transportation, the question whether it should be subjected to the requirements of the Railway Labor Act relating to the adjustment of labor disputes, was one for the decision of Congress. These requirements were prescribed in the exercise by Congress of its constitutional control over interstate commerce.
Texas & New Orleans R. Co.
v.
Railway Clerks,
Congress did not define the term “interurban.” Despite the desirability of such a
definition
4
and the diffi
In the instant case, the Interstate Commerce Commission has made the determination contemplated by the statute and we are not concerned with the questions which might arise in its absence. The Commission’s determination was one of fact.
Shannahan
v.
United States,
We are unable to agree with the view expressed in the court below that the Commission was confined to determining whether respondent was operated as a part of a
In considering the effect of the Commission’s determination, the fundamental question is the intent of Congress. The language of the provision points to definitive action. The Commission is to
“determine.”
The Commission must determine
“after hearing.”
The requirement of a “hearing” has obvious reference “to the tradi-. tion of judicial proceedings in which evidence is received and weighed by the trier of the facts.” The “hearing” is “the hearing of evidence and argument.”
Morgan
v.
United States,
We have held that the determination of the Commission is not an
“order”
reviewable under the Urgent De
What is the scope of the judicial review to which respondent is entitled? As Congress had constitutional authority to enact the requirements of the Railway Labor Act looking to the settlement of industrial disputes between carriers engaged in interstate commerce and their employees,
12
and could include or except interurban carriers as it saw fit, no constitutional question is presented calling for the application of our decisions
13
with respect
The condition which Congress imposed was that the Commission should make its determination after hearing. There is no question that the Commission did give a hearing. Respondent appeared and the evidence which it offered was received and considered. The sole remaining question would be whether the Commission in arriving at its determination departed from the applicable rules of law and whether its finding had a basis in substantial evidence or was arbitrary and capricious. Id. That question must be determined upon the evidence produced before the Commission'.
Taking that position, petitioners unsuccessfully objected in the District Court to the admission of new evidence. But that evidence was substantially the same
It cannot be said upon this evidence, and the related facts summarized in the Commission's report, that the Commission’s determination lacked support or was arbitrary or capricious. Nor is there ground for holding that the Commission in reaching its determination departed from applicable principles of law. There is no principle of law which required such a carrier to be classified as an interurban railway. Failing in its effort to obtain a clarifying definition from Congress, the Commission performed its duty in weighing the evidence and reaching its conclusion in the light of the dominant characteristics of respondent’s operations which were fairly comparable to those of standard steam railroads. Compare Piedmont & Northern Ry. Co. v. Interstate Commerce Comm’n, supra, pp. 308-310; United States v. Chicago North Shore & M. R. Co., supra, p. 10.
We conclude that the District Court erred in permitting a trial de novo of that issue and that the determination of the Commission was within its authority validly exercised. The decree of the Circuit Court of Appeals is reversed and the cause is remanded to the District Court with direction to dismiss the bill of complaint.
Reversed.
Notes
48 Stat. 1185; 45 U. S. C. 151
45 U. S. C. 152, Eighth.
45 U. S. C. 152, Tenth.
Annual Reports of Interstate Commerce Commission, 1921, p. 21; 1923, p. 70; 1924, p. 78; 1925, p. 72; 1928, p. 83; 1929, p. 80; to which reference is made in
United States
v.
Chicago North Shore & M. R. Co.,
See Texas Electric Railway, 208 I. C. C. 193; Chicago South Shore & South Bend Railroad, 214 I. C. C. 167; Utah Idaho Central Railroad Co., 214 I. C. C. 707.
38 Stat. 208, 219, 220; 28 U. S. C. 41, 46, 47.
Compare
Great Northern Ry. Co.
v.
United States,
49 Stat. 449, § 2 (2).
50 Stat. 307.
50 Stat. 435.
52 Stat. 1094. See, also, the provision of § 9 (a) of the Carriers Taxing Act of 1937, 50 Stat. 439, with respect to the application of the term “employment” as defined in Title VIII of the Social Security Act, § 811 (b).
Texas & New Orleans R. Co.
v.
Railway Clerks,
Ohio Valley Water Co.
v.
Ben Avon Borough,
See
United States
v.
Chicago North Shore & M. R. Co.,
