delivered the opinion of the Court.
In this case a three-judge District Court was convened pursuant to 28 U. S. C. § 2281 to hear federal constitutional challenges against five Virginia statutes. It declared three invalid under the Fourteenth Amendment, and permanently enjoined the appellants from enforcing them against the appellees; the other two statutes it found- vague and ambiguous and aecordingly retained jurisdiction pending a construction by the state courts. 159 F. Supp. 503. Only the former disposition was appealed. The appeal raises two questions: First, whether in the circumstances of this case the District Court should have abstained from a constitutional adjudication,-retaining the cause while the parties, through appropriate proceedings, afforded, the Virginia courts an opportunity to construe the three statutes in light of state and federal constitutional requirements. Second, if such an absten*169tion was not called for, whether the District Court’s constitutional holdings were correct. Because of our views upon the first question we do not reach' the second.
National Association for the Advancement of Colored People (NAACP) and NAACP Legal Defense and Educational Fund, Incorporated (Fund), appellees herein, are organizations engaged in furthering the. rights of colored citizens. Both are membership corporations organized under the laws of New York, and have registered under the laws of Virginia as foreign corporations doing business within the State. NAACP’s principal relevant activities in Virginia are appearing before legislative bodies and commissions in support of, or opposition to, measures affecting the status of the Negro race within the State, and furnishing assistance to Negroes concerned in litigation involving their constitutional rights. Fund performs functions similar to those of NAACP in the field of litigation, but is precluded by its charter from attempting to influence legislation. The revenues of. NAACP are derived both from membership dues and general contributions, those of Fund entirely from contributions.
NAACP and Fund brought this action against the Attorney General of Virginia and á number of other Commonwealth officials, appellants herein, for declaratory and injunctive relief with respect to Chapters 31,. 32, 33, 35 and 36 of the Acts of the Virginia Assembly, passed in 1956. 4 Va. Code, 1958 Supp„ §§ 18-349.9 to 18-349.37; 7 Va. Code, 1958, §§ 54-74, 54-78, 54-79. The complaint, alleging irreparable injury on account of these enactments, sought a declaration that each infringed rights assured under theEourteenth Amendment and an injunction against its enforcement. Jurisdiction was predicated upon the civil rights statutes, 42 U. S. C. §§ 1981, 1983, 28 U. S. C. § 1343, diversity of citizenship; 28 U. S. C. § 1332, and the presence of a federal question, 28 U. S. C. § 1331.
*170The Attorney. General and his codefendants moved to dismiss the action on the ground, among others, that the District Court should not “exercise its jurisdiction to enjoin the enforcement of state statutes which have not been authoritatively construed by the state courts.” The District Court, recognizing “the necessity of maintaining the delicate balance between state and federal courts under the concept of separate -sovereigns,” stated that “the constitutionality of state statutes requiring special competence in the interpretation of local law should not be determined by federal courts in advance of a reasonable opportunity afforded the parties to seek an adjudication by the state court,” but considered that relief should be granted where “the statute is free from ambiguity and there remains no reasonable interpretation which will render it.constitutional ...” 159 F. Supp., at 522, 523. On this basis, the court, one judge dissenting, held Chapters 31, 32, and 35 unconstitutional, and permanently enjoined their enforcement against NAACP and Fund. Chapters 33 and 36, on the other hand, the court unanimously found vague and ambiguous. It accordingly retained jurisdiction as to those Chapters, without reaching their constitutionality, allowing the complaining parties a reasonable time within which to obtain a state interpretation. .
The Commonwealth defendants, proceeding under 28 U. S. C. § 1253, appealed to this Court the lower court’s disposition of Chapters 31, 32, and 35. We noted probable jurisdiction. 358 U. S. 807. NAACP and Fund did not appeal the disposition of Chapters 33 and 36.
• The three Virginia statutes before us are lengthy, detailed, and sweeping. Chapters 31 and 32 are registration statutes. Chapter 31 deals with the rendering of financial assistance in litigation. It proscribes the public solicitation of funds, and the expenditure of funds from whatever source derived, for the commencement or fur*171ther prosecution of an “original proceeding,” by any person, broadly defined- to include corporations and other entities, which is neither a party nor possessed of a “pecuniary right or liability” in such proceeding, unless a detailed annual filing is made with the State Corporation Commission. If such person is a corporation, the filing must include among other things, (1) certified-copies of its charter and by-laws; (2)“a certified list of the names and addresses of the officers, directors, stockholders, members, agents-and employees or other persons acting for or in [its] behalf;” (3) a certified statement of the sources of its income, however derived, including the names and addresses of contributors or donors if required by the Commission; (4) a detailed certified statement of the corporation’s expenditures for the preceding year, the objects thereof, and whatever other information relative thereto may be required by the Commission; and (5) a certified statement of the “counties and cities in which it proposes to or does finance or maintain litigation to which it is not a party.” Correspondingly broad disclosures are required of individuals who fall within the statutory proscription.
Violation of this Chapter is punishable as a misdemeanor for individuals, and by a fine of not more than $10,000 for corporations, plus a mandatory denial or revocation of authority .¿to do business within the State in the case of a- foreign corporation. An individual “acting as an agent or employee” of a corporation or other entity with respect to activity violative of the Chapter is deemed guilty of a misdemeanor. And directors, officers, and “those persons responsible for the management or control ;of the affairs” of a corporation or other entity are made jointly, .and severally liable for whatever fines might be imposed on it.
Chapter 32 deals with activities relating to the passage of racial legislation, with advocacy of “racial integration or segregation,” and also with the raising and expenditure *172of funds in connection with, racial litigation. Declaring that the “continued harmonious relations between the races are . . . essential to the welfare, health and safety of the people of Virginia, ’.’ the Chapter finds it “vital to the public interest” that registration be made with the State Corporation Commission by “persons, firms, partnerships, corporations and associations whose activities are causing or may cause interracial tension and unrest.” Specifically, under § 2 of this Chapter, annual filings are required of
“[e]very person, firm, partnership, corporation-or association, whether- by or through its agents, servants, employees, officers,' or voluntary workers or associates, who or which engages as one of its principal functions or actívitiés in the promoting or opposing in any manner the passage of- legislation by the General Assembly in behalf of any race or color, or who or which has as one of its principal functions or activities the advocating of racial integration or segregation or whose activities cause or tend to cause racial conflicts or violence, or who or which is engaged or engages in raising or expending funds for the employment of counsel or payment of costs in connection with litigation in behalf of any race or color, in this State . . . .”
The extent of such filing is comparable to that required by Chapter 31. The information so furnished is a matter of public record, to “be open to the inspection of any citizen, at any time during the regular-business hours of” the State Corporation Commission.
Failure to register subjects individuals' to punishment as for a misdemeanor, and corporations to a fine not exceeding $10,000. Like Chapter 31, Chapter 32 also makes “responsible” persons liable jointly and severally for corporate fines. Furthér, “[e]ach day’s failure to *173register and file the information required . . . shall constitute a separate offense and be punished as such.” The Chapter is not applicable to persons or organizations which carry on the proscribed activities through matter which may qualify as second-class mail in the United States mails, or by radio or television, nor to persons or organizations acting in connection with any political campaign.
Chapter 35 is a “barratry” statute. . Barratry is defined as “the offense of stirring up litigation.” A “barrator” is thus a person or organization which “stirs up litigation.” Stirring up litigation means “instigating,” which in turn “means bringing it about that all or part of the. expenses of the litigation are paid by the barrator,” or by those, other than the plaintiffs, acting in concert with him, “unless the instigation is justified.” An instigation is “justified” when “the instigator is related by blood or marriage to the plaintiff whom he instigates, or . ; . is entitled by law to share with the plaintiff in money or property that is the subject of the litigation or . . . has a direct interest [“personal right or a pecuniary right or liability”'] in the subject matter of the litigation or occupies a position of trust in relation to the plaintiff; or ... is acting on behalf of a duly constituted legal aid society approved by the Virginia State Bar which offers advice or assistance in all kinds of legal matters to all members of the public who come to it for advice or assistance and are unable because of poverty to pay legal fees.”
Individuals guilty of barratry as defined in the Chapter are punishable as for a misdemeanor and “shall” have their licenses “to practice law or any other profession . . . revoked for such period as provided by law.” Corporations are subject to a fine of not more than $10,000 and, if they are foreign, mandatory revocation of their authority to do business within the State. Moreover, a “person who aids and abets a barrator by giving money or render*174ing services to or for the use or benefit of the barrator for committing barratry shall be guilty of barratry and punished . . . .” A host of exceptions to which the Chapter is not applicable is provided;1 none of these has thus far been asserted to include,, or to be capable of including, appellees.
The'majority below held Chapters 31 and 322 unconstitutional on similar grounds, centering its treatment of both around § 2 of Chapter 32, the material provisions of which have already been set forth, p. 172, supra. In essence § 2 was found to infringe rights assured under the Fourteenth Amendment, in that, taken in conjunction with the registration requirements of the statute, (1) the clause relating to the promoting or opposing of racial legislation invaded rights of free speech because it was not restricted to lobbying activities;3 (2) the clause directed *175at advocacy of racial “integration or segregation” had the same infirmity because it was not supported by a compelling state interest or some clear and present danger;4 (3) the clause referring to activities causing or tending to cause racial conflicts or violence was too vague and indefinite to satisfy constitutional requirements;5 and (4) the clause aimed at the raising and expending of funds in connection with racial litigation unduly burdened the right of access to the courts, and did not serve an interest which could support a disclosure as broad as the one demanded.6
Chapter 35, the “barratry” statute, was held to offend due process, in that it was found to be aimed not at the legitimate regulation of the practice of law but at preventing NAACP and Fund from continuing “their legal operations.” In addition, the court held the Chapter to violate equal protection by unjustifiably discriminating between the racial litigation activities of the appellees and the general litigation efforts of “approved” legal aid societies.
These constitutional holdings were made in the context of findings that Chapters 31, 32, and 35, as well as Chapters 33 and 36 not presently before us, were passed by the Virginia Legislature “to nullify as far as possible the effect of the decision of the Supreme Court in Brown v. Board of Education, 347 U. S. 483 ... as parts of the general plan of massive resistance to the integration of *176schools of the state under the Supreme Court’s decrees.” 159 F. Supp., at 511, 515. In the view we take of this case we do not reach appellants’ objections to these findings.
According every consideration to the opinion of the majority below, we are. nevertheless of the view that the District Court should have abstained from deciding the merits of the issues .tendered it, so as to afford the Virginia courts a reasonable opportunity to construe the three statutes in question. In other words, we think that the District Court in dealing with Chapters 31, 32, and 35 should have followed the same course that it did with respect to Chapters 33 and 36.
This now well-established procedure is aimed at the avoidance of unnecessary interference by the federal courts with proper and validly administered state concerns, a course so essential to the balanced working of our federal system. To minimize the possibility of such interference a “scrupulous regard for the rightful independence of state governments . . . should at all times actuate the federal courts,” Matthews v. Rodgers, 284 U. S. 521, 525, as their “contribution .... in furthering the harmonious relation between state and federal authority . . . .” Railroad Comm’n v. Pullman Co., 312 U. S. 496, 501. In the service of this doctrine, which this Court has applied in many different contexts, no principle has found more consistent or clear expression than that'the federal courts should not adjudicate the constitutionality of state enactments fairly open to; interpretation until the- state courts have been afforded a reasonable opportunity to pass upon them. See, e. g., Railroad Comm’n v. Pullman Co., supra; Chicago v. Fieldcrest Dairies, Inc., 316 U. S. 168; Spector Motor Service, Inc., v. McLaughlin, 323 U. S. 101; American Federation of Labor v. Watson, 327 U. S. 582; Shipman v. DuPre, 339 U. S. 321; Albertson v. Millard, 345 U. S. *177242; Government & Civic Employees v. Windsor, 353 U. S. 364. This principle does not, of course, involve the. abdication of federal jurisdiction,, but only-the postponement of its áxercise; it serves the policy of comity inherent in the doctrine of abstention; and it spares the federal courts of unnecessary constitutional adjindication. See Chicago v. Fieldcrest Dairies, Inc., supra, at 172-173.
The present case, in our view, is one which calls for the application of this principle, since we are-, unable to agree that the terms of these three statutes’ leave no reasonable room for á construction by the Virginia courts which might avoid in whole or in part the necessity for federal constitutional adjudication, or at least materially change the nature of the problem.
It certainly cannot be said that Chapter 35 does not require a construction by the state courts. As' appellants asserted here and in the court below, the Chapter might well be read as requiring a “stirring up” of litigation in the conventional common-law sense, in addition to the “unjustified” payment of litigation expenses. Were it to be so read, the statute might then not even apply to these appellees since the lower court found the evidence “uncontradicted that the initial steps which have led to the institution and prosecution of racial suits in Virginia with the assistance of the Association and the Fund have not been taken until the prospective plaintiffs made application to one or the other of the corporations for help.” 159 F. Supp., at 533. Further the “personal right” component of “direct interest” in the statutory definition of “justified” instigation (see p. 173, supra) might lend itself to a cónstrdction which would embrace nonparty Negro contributors to litigation expense, including NAACP because of the relationship of that organization to its members. Cf. NAACP v. Alabama, 357 U. S. 449.
The possibility of limiting interpretation, characteristic of constitutional adjudication, also capnot be ignored. *178Government & Civic Employees v. Windsor, supra. The “advocacy” clause of Chapter 32, for example, might'be construed as reaching only that directed at the incitement of violence. Cf. Yates v. United States, 354 U. S. 298. Similar construction might be employed with respect to the clause in that Chapter relating to the influencing of legislation “in any manner,” cf. United States v. Harriss, supra; United States v. Rumely, 345 U. S. 41. And, in connection with these and the membership and contributor list requirements of Chapters 31 and 32, cf. NAACP v. Alabama, supra, we note that Chapter 32 contains a separability clause, and that the Supreme Court of Appeals of Virginia treats legislative acts as separable; .where possible, even in the absence of such an express provision. See Woolfolk v. Driver, 186 Va. 174, 41 S. E. 2d 463.
We do not intimate the slightest view as to what effect any such determinations might have upon the validity of these statutes. All we hold is that these enactments should be exposed to state construction or limiting interpretation. before the federal courts are asked to decide upon their constitutionality, so that federal judgment will be baséd on something that is a complete product of the State, the enactment as phrased by its legislature and as construed by its highest court. The .Virginia declaratory judgment procedure, 2 Va. Code, 1950, §§ 8-578 to 8-585, which the appellees are now pursuing with reference to Chapters 33 and 36, also provides an expeditious avenue here. And of course we shall not assume that the Virginia courts will not do their full duty. in judging these statutes in light of state and federal constitutional requirements.
Because of its findings, amply supported by the evidence, that the existence and threatened enforcement of these' statutes worked great and immediate irreparable injury on appellees, the District Court’s abstention with respect to Chapters 33 and 36 proceeded on the assump*179tion “that the defendants will, continue to cooperate, as they have in the past, in withholding action under the authority of the statutes until a final decision is reached . . . .'' 159 F. Supp., at 534. In this Court counsel for 'the appellants has given similar assurances with respect to the three statutes presently before us, assurances which we understand embrace also the intention, of these appellants never to proceed against appellees under any of these enactments with respect to activities engaged in during the full pendency of this litigation. While there is no reason to suppose that such .assurances will not be honored by these or other Virginia officials not parties to this litigation, the District Court of course possesses ample authority in this action, or in such supplemental proceedings as may be initiated, to protect the appellees while this case goes forward.
Accordingly, the judgment below will be vacated and the case remanded to the District Court, with instructions to afford the appellees, a reasonable opportunity to bring appropriate proceedings in the Virginia courts, meanwhile retaining its own jurisdiction of the case, and for further proceedings consistent with this opinion.
It is so ordered.
“This article shall not be applicable to attorneys who are parties to contingent fee contracts with their clients where the attorney does not protect the client from payment of the costs and expense of litigation, nor shall this article apply to any matter involving annexation, zoning, bond issues, or the holding or results of any election or, referendum, nor shall this article apply to suits pertaining to or affecting possession of or title to real or personal property, regardless of ownership, nor shall this article apply to suits involving the legality of assessment or collection of taxes or the rates thereof, nor shall this article apply to suits involving rates or changes or services by common carriers or public utilities, nor shall this article apply to criminal prosecutions, nor to the payment of attorneys by legal aid societies approved by the Virginia State Bar, nor to proceedings to, abate nuisances. Nothing-herein shall be construed to be in derogation of the constitutional rights of real parties in interest to employ counsel or to prosecute any available legal remedy under the laws of this State.”'
Chief Judge Hutcheson, the dissenting judge, did not reach the constitutionality of any of these statutes, because of his views on the “abstention” issue.
In this, the District Court relied on United States v. Harriss, 347 U. S. 612.
The lower court cited, among other cases, American Communications Assn. v. Douds, 339 U. S. 382; Schenck v. United States, 249 U. S. 47; Dennis v. United States, 341 U. S. 494; Buchanan v. Warley, 245 U. S. 60; Grosjean v. American Press Co., 297 U. S. 233; Thomas v. Collins, 323 U. S. 516; and distinguished Bryant v. Zimmerman, 278 U. S. 63.
Citing United States v. Harriss, supra.
On the latter ground, the court distinguished such cases as Cantwell v. Connecticut, 310 U. S. 296, and Burroughs v. United States, 290 U. S. 534; and cited Thomas v. Collins, supra.