opinion: SLOCUM, GENERAL CHAIRMAN, LACKAWANNA DIVISION NO. 30, ORDER OF RAILROAD TELEGRAPHERS, v. DELAWARE, LACKAWANNA & WESTERN RAILROAD CO.
  No. 391.
  Argued February 8, 1950. —
  Decided April 10, 1950.
  Leo J. Hassenauer and Manly Fleischmann argued the cause and filed a brief for petitioner.
  Pierre W. Evans argued the cause for respondent. With him on the brief was Rowland L. Davis, Jr.
  Mr. Justice Black
  delivered the opinion of the Court.
  Section 3 of the Railway Labor Act confers jurisdiction on the National Railroad Adjustment Board to hold hearings, make findings, and enter awards in all disputes between carriers and their employees “growing out of grievances or out of the interpretation or application of agreements concerning rates of pay, rules, or working conditions . ...” The question presented is whether state courts have power to adjudicate disputes involving such interpretations when the Adjustment Board has not acted.
  The respondent railroad has separate collective-bargaining agreements with the Order of Railroad Telegraphers and the Brotherhood of Railway Clerks. A dispute arose between the two unions concerning the scope of their respective agreements. Each claimed for its members certain jobs in the railroad yards at Elmira, New York. The railroad agreed with the Clerks Union. The chairman of Telegraphers protested, urging reassignment of the work to members of his union and claiming back pay on behalf of certain individual members. The claims were pursued in “the usual manner” required by § 3 First (i) of the Railway Labor Act, 45 U. S. C. § 153 First (i), as a prerequisite to invoking jurisdiction of the Adjustment Board. That section further provides that, “failing to reach an adjustment in this manner, the disputes may be referred by petition of the parties or by either party to the appropriate division of the Adjustment Board . . .
  Instead of invoking the jurisdiction of the Adjustment Board, the railroad filed this action for declaratory judgment in a New York state court, naming both unions as defendants. It prayed for an interpretation of both agreements, and for a declaration that the Clerks’ agreement, not the Telegraphers’, covered the jobs in controversy. It also asked for a declaration that the Telegraphers must refrain from making similar claims under its bargaining agreement. Telegraphers moved to dismiss the case on the ground that the Railway Labor Act left the state court without jurisdiction to interpret the contracts and adjudicate the dispute. That motion was denied. After a trial, the court interpreted the contracts as the railroad had urged, and entered the requested declarations. This judgment was affirmed by the Court of Appeals of New York, two judges dissenting. 299 N. Y. 496, 87 N. E. 2d 532. The majority thought that our opinion in Moore v. Illinois Central R. Co., 312 U. S. 630, left state courts free to adjudicate disputes arising out of a carrier-union collective agreement without obtaining the Board’s interpretation of that agreement. The dissenting judges, however, relied on Order of Conductors v. Pitney, 326 U. S. 561, where we held that federal courts should not interpret such agreements prior to interpretation by the Adjustment Board. They asserted that this rule was also applicable in state courts. We granted certiorari to consider these questions. 338 U. S. 890.
  The first declared purpose of the Railway Labor Act is “To avoid any interruption to commerce or to the operation of any carrier engaged therein.” 48 Stat. 1186 (§2), 45 U. S. C. § 151a. This purpose extends both to disputes concerning the making of collective agreements and to grievances arising under existing agreements. See Elgin, J. & E. R. Co. v. Burley, 325 U. S. 711, 722. The plan of the Act is to provide administrative methods for settling disputes before they reach acute stages that might be provocative of strikes. Carriers are therefore required to negotiate with bargaining representatives of the employees. Virginian R. Co. v. Federation, 300 U. S. 515, 547, 548. The Act also sets up machinery for conciliation, mediation, arbitration and adjustment of disputes, to be invoked if negotiations fail.
  In this case the dispute concerned interpretation of an existing bargaining agreement. Its settlement would have prospective as well as retrospective importance to both the railroad and its employees, since the interpretation accepted would govern future relations of those parties. This type of grievance has long been considered a potent cause of friction leading to strikes. It was to prevent such friction that the 1926 Act provided for creation of various Adjustment Boards by voluntary agreements between carriers and workers. 44 Stat. 578. But this voluntary machinery proved unsatisfactory, and in 1934 Congress, with the support of both unions and railroads, passed an amendment which directly created a national Adjustment Board composed of representatives of railroads and unions. 48 Stat. 1189-1193. The Act thus represents a considered effort on the part of Congress to provide effective and desirable administrative remedies for adjustment of railroad-employee disputes growing out of the interpretation of existing agreements. The Adjustment Board is well equipped to exercise its congressionally imposed functions. Its members understand railroad problems and speak the railroad jargon. Long and varied experiences have added to the Board’s initial qualifications. Precedents established by it, while not necessarily binding, provide opportunities for a desirable degree of uniformity in the interpretation of agreements throughout the nation’s railway systems.
  The paramount importance of having these chosen representatives of railroads and unions adjust grievances and disputes was emphasized by our opinion in Order of Conductors v. Pitney, supra. There we held, in a case remarkably similar to the one before us now, that the Federal District Court in its equitable discretion should have refused “to adjudicate a jurisdictional dispute involving the railroad and two employee accredited bargaining agents . . . Our ground for this holding was that the court “should not have interpreted the contracts” but should have left this question for determination by the Adjustment Board, a congressionally designated agency peculiarly competent in this field. 326 U. S. at 567-568. This reasoning equally supports a denial of power in any court — state as well as federal — ■ to invade the jurisdiction conferred on the Adjustment Board by the Railway Labor Act.
  Our holding here is not inconsistent with our holding in Moore v. Illinois Central R. Co., 312 U. S. 630. Moore was discharged by the railroad. He could have challenged the validity of his discharge before the Board, seeking reinstatement and back pay. Instead he chose to accept the railroad’s action in discharging him as final, thereby ceasing to be an employee, and brought suit claiming damages for breach of contract. As we there held, the Railway Labor Act does not bar courts from adjudicating such cases. A common-law or statutory action for wrongful discharge differs from any remedy which the Board has power to provide, and does not involve questions of future relations between the railroad and its other employees. If a court in handling such a case must consider some provision of a collective-bargaining agreement, its interpretation would of course have no binding effect on future interpretations by the Board.
  We hold that the jurisdiction of the Board to adjust grievances and disputes of the type here involved is exclusive. The holding of the Moore case does not conflict with this decision, and no contrary inference should be drawn from any language in the Moore opinion. It was error for the New York courts to uphold a declaratory judgment interpreting these collective-bargaining agreements. The judgment of the New York Court of Appeals is reversed and the cause is remanded for further proceedings not inconsistent with this opinion.
  It is so ordered.
  Mr. Justice Douglas took no part in the consideration or decision of this case.
  48 Stat. 1185, 1189-1193, 45 U. S. C. § 153.
  The full name of the latter union is Brotherhood of Railway and Steamship Clerks, Freight Handlers, Express and Station Employees.
  “The disputes between an employee or group of employees and a carrier or carriers growing out of grievances or out of the interpretation or application of agreements concerning rates of pay, rules, or working conditions . . . shall be handled in the usual manner up to and including the chief operating officer of the carrier designated to handle such disputes; but, failing to reach an adjustment in this manner, the disputes may be referred by petition of the parties or by either party to the appropriate division of the Adjustment Board with a full statement of the facts and all supporting data bearing upon the disputes.” 48 Stat. 1191.
  The Appellate Division of the Supreme Court (3d Dept.) also affirmed both the order of the trial court denying the motion to dismiss, 269 App. Div. 467, 57 N. Y. S. 2d 65, and the subsequent judgment on the merits, 274 App. Div. 950, 83 N. Y. S. 2d 513. An opinion of the New York Supreme Court denying petitioner’s motion to remove the action to the United States District Court is reported at 183 Misc. 454, 50 N. Y. S. 2d 313. The opinion of the United States District Judge remanding the case to the state court is reported in 56 F. Supp. 634.
  “These unadjusted disputes have become so numerous that on several occasions the employees have resorted to the issuance of strike ballots and threatened to interrupt interstate commerce in order to secure an adjustment. This has made it necessary for the President of the United States to intervene and establish an emergency board to investigate the controversies. This condition should be corrected in the interest of industrial peace and of uninterrupted transportation service. This bill, therefore, provides for the establishment of a national board of adjustment to which these disputes may be submitted if they shall not have been adjusted in conference between the parties.” H. R. Rep. No. 1944, 73d Cong., 2d Sess. 3.
  For an interesting discussion of the Act’s history and purposes, see Garrison, “The National Railroad Adjustment Board: A Unique Administrative Agency,” 46 Yale L. J. 567 et seq.
  We are not confronted here with any disagreement or conflict in interest between an employee and his bargaining representative, as in Steele v. Louisville & N. R. Co., 323 U. S. 192. Nor are we called upon to decide any question concerning judicial proceedings to review board action or inaction.
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