delivered the opinion of the Court.
The State of Michigan has enacted legislation authorizing a system for union representation of local governmental employees. A union and a local government employer are specifically permitted to agree to an “agency shop” arrangement, whereby every employee represented by a union— even though not a union member — must pay to the union, as a condition of employment, a service fee equal in amount to union dues. The issue before us is whether this arrangement violates the constitutional rights of government employees who object to public-sector unions as such or to various union activities financed by the compulsory service fees.
I
After a secret ballot election, the Detroit Federation of Teachers (Union) was certified in 1967 pursuant to Michigan *212law as the exclusive representative of teachers employed by the Detroit Board of Education (Board) ,1 The Union and the Board thereafter concluded a collective-bargaining agreement effective from July 1, 1969, to July 1, 1971. Among the agreement’s provisions was an “agency shop” clause, requiring every teacher who had not become a Union member within 60 days of hire (or within 60 days of January 26, 1970, the effective date of the clause) to pay the Union a service charge equal to the regular dues required of Union members. A teacher who failed to meet this obligation was subject to discharge. Nothing in the agreement, however, required any teacher to join the Union, espouse the cause of unionism, or participate in any other way in Union affairs.
On November 7, 1969 — more than two months before the agency-shop clause was to become effective — Christine Warczak and a number of other named teachers filed a class action in a state court, naming as defendants the Board, the Union, and several Union officials. Their complaint, as amended, alleged that they were unwilling or had refused to pay dues 2 and that they opposed collective bargaining in *213the public sector. The amended complaint further alleged that the Union “carries on various social activities for the benefit of its members which are not available to nonmembers as a matter of right,” and that the Union is engaged
“in a number and variety of activities and programs which are economic, political, professional, scientific and religious in nature of which Plaintiffs do not approve, and in which they will have no voice, and which are not and will not be collective bargaining activities, i. e., the negotiation and administration of contracts with Defendant Board, and that a substantial part of the sums required to be paid under said Agency Shop Clause are used and will continue to be used for the support of such activities and programs, and not solely for the purpose of defraying the cost of Defendant Federation of its activities as bargaining agent for teachers employed by Defendant Board.” 3
The complaint prayed that the agency-shop clause be declared invalid under state law and also under the United States Constitution as a deprivation of, inter alia, the plaintiffs’ freedom of association protected by the First and Fourteenth Amendments, and for such further relief as might be deemed appropriate.
Upon the defendants’ motion for summary judgment, the trial court dismissed the action for failure to state a claim upon which relief could be granted.4 Warczak v. Board of *214Education, 73 LRRM 2237 (Cir. Ct. Wayne County). The plaintiffs appealed, and while their appeal was pending the Michigan Supreme Court ruled in Smigel v. Southgate Community School Dist., 388 Mich. 531, 202 N. W. 2d 305, that state law prohibited an agency shop in the public sector. Accordingly, the judgment in the Warczak case was vacated and remanded to the trial court for further proceedings consistent with the Smigel decision.
Meanwhile, D. Louis Abood and other named teachers had filed a separate action in the same state trial court. The allegations in the complaint were virtually identical to those in Warczak,5 and similar relief was requested.6 This second action was held in abeyance pending disposition of the Warczak appeal, and when that case was remanded the two cases were consolidated in the trial court for consideration of the defendants' renewed motion for summary judgment.
On November 5, 1973, that motion was granted. The trial court noted that following the Smigel decision, the Michigan Legislature had in 1973 amended its Public Employment Relations Act so as expressly to authorize an agency shop. 1973 Mich. Pub. Acts, No. 25, codified as Mich. Comp. Laws §423.210 (l)(c).7 This amendment was applied retra*215actively by the trial court to validate the agency-shop clause predating 1973 as a matter of state law, and the court ruled further that such a clause does not violate the Federal Constitution.
The plaintiffs’ appeals were consolidated by the Michigan Court of Appeals, which ruled that the trial court had erred in giving retroactive application to the 1973 legislative amendment. The appellate court proceeded, however, to consider the constitutionality of the agency-shop clause, and upheld its facial validity on the authority of this Court’s decision in Railway Employes’ Dept. v. Hanson, 351 U. S. 225, which upheld the constitutionality under the First Amendment of a union-shop clause, authorized by the Railway Labor Act, requiring financial support of the exclusive bargaining representative by every member of the bargaining unit. Id., at 238. Noting, however, that Michigan law also permits union expenditures for legislative lobbying and in support of political candidates, the state appellate court identified an issue explicitly not considered in Hanson — the constitutionality of using compulsory service charges to further “political purposes” unrelated to collective bargaining. Although recognizing that such expenditures “could violate plaintiffs’ First and Fourteenth Amendment rights,” the court read this Court’s more recent decisions to require that an employee who seeks to vindicate such rights must “make known to the union those causes and candidates to which he objects.” Since the complaints had failed to allege that any such notification had been given, the court held that the plaintiffs were not entitled to restitution of any portion of the service charges. The trial court’s error on the retroactivity question, however, led the appellate court to reverse and remand *216the case.8 60 Mich. App. 92, 230 N. W. 2d 322. After the Supreme Court of Michigan denied review, the plaintiffs appealed to this Court, 28 U. S. C. § 1257 (2), and we noted probable jurisdiction, 425 U. S. 949.9
*217II
A
Consideration of the question whether an agency-shop provision in a collective-bargaining agreement covering governmental employees is, as such, constitutionally valid must begin with two cases in this Court that on their face go far toward resolving the issue. The cases are Railway Employes’ Dept. v. Hanson, supra, and Machinists v. Street, 367 U. S. 740.
In the Hanson case a group of railroad employees brought an action in a Nebraska court to enjoin enforcement of a union-shop agreement.10 The challenged clause was author*218ized, and indeed shielded from any attempt by a State to prohibit it, by the Railway Labor Act, 45 U. S. C. § 152 Eleventh.11 The trial court granted the relief requested. The Nebraska Supreme Court upheld the injunction on the ground that employees who disagreed with the objectives promoted by union expenditures were deprived of the freedom of association protected by the First Amendment. This Court agreed that “justiciable questions under the First and Fifth Amendments were presented,” 351 U. S., at 231,12 *219but reversed the judgment of the Nebraska Supreme Court on the merits. Acknowledging that “[m]uch might be said pro and con” about the union shop as a policy matter, the Court noted that it is Congress that is charged with identifying “[t]he ingredients of industrial peace and stabilized labor-management relations ....’’ Id., at 233-234. Congress determined that it would promote peaceful labor relations to permit a union and an employer to conclude an agreement requiring employees who obtain the benefit of union representation to share its cost, and that legislative judgment was surely an allowable one. Id., at 235.
The record in Hanson contained no evidence that union dues were used to force ideological conformity or otherwise to impair the free expression of employees, and the Court noted that “[i]f ‘assessments’ are in fact imposed for purposes not germane to ■ collective bargaining, a different problem would be presented.” Ibid, (footnote omitted). But the Court squarely held that “the requirement for financial support of the collective-bargaining agency by all who receive the benefits of its work . . . does not violate . . . the First . . . Amendmen[t].” Id., at 238.
The Court faced a similar question several years later in the Street case, which also involved a challenge to the constitutionality of a union shop authorized by the Railway Labor Act. In Street, however, the record contained findings that the union treasury to which all employees were required to contribute had been used “to finance the campaigns of candidates for federal and state offices whom [the plaintiffs] opposed, and to promote the propagation of political and economic doctrines, concepts and ideologies with which [they] disagreed.” 367 U. S., at 744.
’ The Court recognized, id., at 749, that these findings presented constitutional “questions of the utmost gravity” not *220decided in Hanson, and therefore considered whether the Act could fairly be construed to avoid these constitutional issues. 367 U. S., at 749-750.13 The Court concluded that the Act could be so construed, since only expenditures related to the union’s functions in negotiating and administering the collective-bargaining agreement and adjusting grievances and disputes fell within “the reasons . . . accepted by Congress why authority to make union-shop agreements was justified,” id., at 768. The Court ruled, therefore, that the use of compulsory union dues for political purposes violated the Act itself. Nonetheless, it found that an injunction against enforcement of the union-shop agreement as such was impermissible under Hanson, and remanded the case to the Supreme Court of Georgia so that a more limited remedy could be devised.
The holding in Hanson, as elaborated in Street, reflects familiar doctrines in the federal labor laws. The principle of exclusive union representation, which underlies the National Labor Relations Act14 as well as the Railway Labor Act, is a central element in the congressional structuring of industrial relations. E. g., Emporium Capwell Co. v. Western Addition Community Org., 420 U. S. 50, 62-63; NLRB v. Allis-Chalmers Mfg. Co., 388 U. S. 175, 180; Medo Corp. v. NLRB, 321 U. S. 678, 684-685; Virginian R. Co. v. System Federation No. 40, 300 U. S. 515, 545-549. The designation of a single representative avoids the confusion that would result from attempting to enforce two or more agreements specifying different terms and conditions of employment. It prevents inter-union rivalries from creating *221dissension within the work force and eliminating the advantages to the employee of collectivization. It also frees the employer from the possibility of facing conflicting demands from different unions, and permits the employer and a single union to reach agreements and settlements that are not subject to attack from rival labor organizations. See generally Emporium Capwell Co. v. Western Addition Community Org., supra, at 67-70; S. Rep. No. 573, 74th Cong., 1st Sess., 13 (1935).
The designation of a union as exclusive representative carries with it great responsibilities. The tasks of negotiating and administering a collective-bargaining agreement' and representing the interests of employees in settling disputes and processing grievances are continuing and difficult ones. They often entail expenditure of much time and money. See Street, 367 U. S., at 760. The services of lawyers, expert negotiators, economists, and a research staff, as well as general administrative personnel, may be required. Moreover, in carrying out these duties, the union is obliged “fairly and equitably to represent all employees . . . , union and nonunion,” within the relevant unit. Id., at 761.15 A union-*222shop arrangement has been thought to distribute fairly the cost of these activities among those who benefit, and it counteracts the incentive that employees might otherwise have to become “free riders” — to refuse to contribute to the union while obtaining benefits of union representation that necessarily accrue to all employees. Ibid.; see Oil Workers v. Mobil Oil Corp., 426 U. S. 407, 415-416; NLRB v. General Motors, 373 U. S. 734, 740-741.
To compel employees financially to support their collective-bargaining representative has an impact upon their First Amendment interests. An employee may very well have ideological objections to a wide variety of activities undertaken by the union in its role as exclusive representative. His moral or religious views about the desirability of abortion may not square with the union’s policy in negotiating a medical benefits plan. One individual might disagree with a union policy of negotiating limits on the right to strike, believing that to be the road to serfdom for the working class, while another might have economic or political objections to unionism itself. An employee might object to the union’s wage policy because it violates guidelines designed to limit inflation, or might object to the union’s seeking a clause in the collective-bargaining agreement proscribing racial discrimination. The examples could be multiplied. To be required to help finance the union as a collective-bargaining agent might well be thought, therefore, to interfere in some way with an employee’s freedom to associate for the advancement of ideas, or to refrain from doing so, as he sees fit.16 But the judgment clearly made in Hanson and Street is that such interference as exists is constitutionally justified by the legislative assessment of the important contribution of the union shop to the system of labor relations established by Congress. “The *223furtherance of the common cause leaves some leeway for the leadership of the group. As long as they act to promote the cause which justified bringing the group together, the individual cannot withdraw his financial support merely because he disagrees with the group’s strategy. If that were allowed, we would be reversing the Hanson case, sub silentio.” Machinists v. Street, 367 U. S., at 778 (Douglas, J., concurring).
B
The National Labor Relations Act leaves regulation of the labor relations of state and local governments to the States. See 29 U. S. C. § 152 (2). Michigan has chosen to establish for local government units a regulatory scheme which, although not identical in every respect to the NLRA or the Railway Labor Act,17 is broadly modeled after federal law. E. g., Rockwell v. Crestwood School Dist. Bd. of Ed., 393 Mich. 616, 635-636, 227 N. W. 2d 736, 744-745, appeal dismissed sub nom. Crestwood Ed. Assn. v. Board of Ed. of Crestwood, 427 U. S. 901; Detroit Police Officers Assn. v. Detroit, 391 Mich. 44, 53, 214 N. W. 2d 803, 807-808; Michigan Employment Relations Comm’n v. Reeths-Puffer School Dist., 391 Mich. 253, 260, and n. 11, 215 N. W. 2d 672, 675, and n. 11. Under Michigan law employees of local government units enjoy rights parallel to those protected under federal legislation: the rights to self-organization and to bargain collectively, Mich. Comp. Laws §§ 423.209, 423.215 (1970); see 29 U. S. C. § 157; 45 U. S. C. § 152 Fourth; and the right to secret-ballot representation elections, Mich. Comp. Laws §423.212 (1970); see 29 U. S. C. § 159 (e)(1); 45 U. S. C. § 152 Ninth.
Several aspects of Michigan law that mirror provisions of the Railway Labor Act are of particular importance here. A union that obtains the support of a majority of employees *224in the appropriate bargaining unit is designated the exclusive representative of those employees. Mich. Comp. Laws § 423.211 (1970).18 A union so designated is under a duty of fair representation to all employees in the unit, whether or not union members. E. g., Lowe v. Hotel & Restaurant Employees Local 705, 389 Mich. 123, 145-152, 205 N. W. 2d 167, 177-180; Wayne County Community College Federation of Teachers Local 2000 v. Poe, 1976 Mich. Emp. Rel. Comm’n 347, 350-353; Local 836, AFSCME v. Solomon, 1976 Mich. Emp. Rel. Comm’n 84, 89. And in carrying out all of its various responsibilities, a recognized union may seek to have an agency-shop clause included in a collective-bargaining agreement. Mich. Comp. Laws §423.210 (1)(c) (1970). Indeed, the 1973 amendment to the Michigan law19 was specifically designed to authorize agency shops in order that “employees in the bargaining unit . . . share fairly in the financial support of their exclusive bargaining representative ... .” §423.210 (2).
The governmental interests advanced by the agency-shop provision in the Michigan statute are much the same as those promoted by similar provisions in federal labor law. The confusion and conflict that could arise if rival teachers’ unions, holding quite different views as to the proper class hours, class sizes, holidays, tenure provisions, and grievance procedures, each sought to obtain the employer’s agreement, are no different in kind from the evils that the exclusivity rule in the Railway Labor Act was designed to avoid. See Madison School Dist. v. Wisconsin Employment Relations Comm’n, 429 U. S. 167, 178 (Brennan, J., concurring in judgment) . The desirability of labor peace is no less important in the public sector, nor is the risk of “free riders” any smaller.
Our province is not to judge the wisdom of Michigan’s *225decision to authorize the agency shop in public employment.20 Rather, it is to adjudicate the constitutionality of that decision. The same important government” interests recognized in the Hanson and Street cases presumptively support the impingement upon associations! freedom created by the agency shop here at issue. Thus, insofar as the service charge is used to finance expenditures by the Union for the purposes of collective bargaining, contract administration, and grievance *226adjustment, those two decisions of this Court appear to require validation of the agency-shop agreement before us.
While recognizing the apparent precedential weight of the Hanson and Street cases, the appellants advance two reasons why those decisions should not control decision of the present case. First, the appellants note that it is government employment that is involved here, thus directly implicating constitutional guarantees, in contrast to the private employment that was the subject of the Hanson and Street decisions. Second, the appellants say that in the public sector collective bargaining itself is inherently “political,” and that to require them to give financial support to it is to require the “ideological conformity” that the Court expressly found absent in the Hanson case. 351 U. S., at 238. We find neither argument persuasive.
Because it is employment by the State that is here involved, the appellants suggest that this case is governed by a long line of decisions holding that public employment cannot be conditioned upon the surrender of First Amendment rights.21 But, while the actions of public employers surely constitute “state action,” the union shop, as authorized by the Railway Labor Act, also was found to result from governmental action in Hanson.22 The plaintiffs’ claims in Hanson failed, not because there was no governmental action, but because there was no First Amendment violation.23 The *227appellants’ reliance on the “unconstitutional conditions” doctrine is therefore misplaced.
The appellants’ second argument is that in any event collective bargaining in the public sector is inherently “political” and thus requires a different result under the First and Fourteenth Amendments. This contention rests upon the important and often-noted differences in the nature of collective bargaining in the public and private sectors.24 A public employer, unlike his private counterpart, is not guided by the profit motive and constrained by the normal operation of the market. Municipal services are typically not priced, and *228where they are they tend to be regarded as in some sense “essential” and therefore are often price-inelastic. Although a public employer, like a private one, will wish to keep costs down, he lacks an important discipline against agreeing to increases in labor costs that in a market system would require price increases. A public-sector union is correspondingly less concerned that high prices due to costly wage demands will decrease output and hence employment.
The government officials making decisions as the public “employer” are less likely to act as a cohesive unit than are managers in private industry, in part because different levels of public authority — department managers, budgetary officials, and legislative bodies — are involved, and in part because each official may respond to a distinctive political constituency. And the ease of negotiating a final agreement with the union may be severely limited by statutory restrictions, by the need for the approval of a higher executive authority or a legislative body, or by the commitment of budgetary decisions of critical importance to others.
Finally, decisionmaking by a public employer is above all a political process. The officials who represent the public employer are ultimately responsible to the electorate, which for this purpose can be viewed as comprising three overlapping classes of voters — taxpayers, users of particular government services, and government employees. Through exercise of their political influence as part of the electorate, the employees have the opportunity to affect the decisions of government representatives who sit on the other side of the bargaining table. Whether these representatives accede to a union’s demands will depend upon a blend of political ingredients, including community sentiment about unionism generally and the involved union in particular, the degree of taxpayer resistance, and the views of voters as to the importance of the service involved and the relation between the demands and the quality of service. It is surely arguable, *229however, that permitting public employees to unionize and a union to bargain as their exclusive representative gives the employees more influence in the decisionmaking process than is possessed by employees similarly organized in the private sector.
The distinctive nature of public-sector bargaining has led to widespread discussion about the extent to which the law governing labor relations in the private sector provides an appropriate model. To take but one example, there has been considerable debate about the desirability of prohibiting public employee unions from striking,25 a step that the State of Michigan itself has taken, Mich. Comp. Laws § 423.202 (1970). But although Michigan has not adopted the federal model of labor relations in every respect, it has determined that labor stability will be served by a system of exclusive representation and the permissive use of an agency shop in public employment. As already stated, there can be no' principled basis for according that decision less weight in the constitutional balance than was given in Hanson to the congressional judgment reflected in the Railway Labor Act.26 The only remaining constitutional inquiry evoked by the appellants' argument, therefore, is whether a public employee has a weightier First Amendment interest than a private employee in not being compelled to contribute to the costs of exclusive union representation. We think he does not.
Public employees are not basically different from private employees; on the whole, they have the same sort of skills, the *230same needs, and seek the same advantages. “The uniqueness of public employment is not in the employees nor in the work performed; the uniqueness is in the special character of the employer.” Summers, Public Sector Bargaining: Problems of Governmental Decisionmaking, 44 U. Cin. L. Rev. 669, 670 (1975) (emphasis added). The very real differences between exclusive-agent collective bargaining in the public and private sectors are not such as to work any greater infringement upon the First Amendment interests of public employees. A public employee who believes that a union representing him is urging a course that is unwise as a matter of public policy is not barred from expressing his viewpoint. Besides voting in accordance with his convictions, every public employee is largely free to express his views, in public or private, orally or in writing. With some exceptions not pertinent here,27 public employees are free to participate in the full range of political activities open to other citizens. Indeed, just this Term we have held that the First and Fourteenth Amendments protect the right of a public school teacher to oppose, at a public school board meeting, a position advanced by the teachers' union. Madison School Dist. v. Wisconsin Employment Relations Comm’n, 429 U. S. 167. In so ruling we recognized that the principle of exclusivity cannot constitutionally be used to muzzle a public employee who, like any other citizen, might wish to express his view about governmental decisions concerning labor relations, id., at 174.
*231There can be no quarrel with the truism that because public employee unions attempt to influence governmental policy-making, their activities — and the views of members who disagree with them — may be properly termed political. But that characterization does not raise the ideas and beliefs of public employees onto a higher plane than the ideas and beliefs of private employees. It is no doubt true that a central purpose of the First Amendment “ 'was to protect the free discussion of governmental affairs.’ ” Post, at 259, quoting Buckley v. Valeo, 424 U. S. 1, 14, and Mills v. Alabama, 384 U. S. 214, 218. But our cases have never suggested that expression about philosophical, social, artistic, economic, literary, or ethical matters — to take a nonexhaustive list of labels — is not entitled to full First Amendment protection.28 Union members in both the public and private sectors may find that a variety of union activities conflict with their beliefs. Compare, e. g., *232supra, at 222, with post, at 256-257. Nothing in the First Amendment or our cases discussing its meaning makes the question whether the adjective “political” can properly be attached to those beliefs the critical constitutional inquiry.
The differences between public- and private-sector collective bargaining simply do not translate into differences in First Amendment rights. Even those commentators most acutely aware of the distinctive nature of public-sector bargaining and most seriously concerned with its policy implications agree that “[t]he union security issue in the public sector . . . is fundamentally the same issue ... as in the private sector. . . . No special dimension results from the fact that a union represents public rather than private employees.” H. Wellington & R. Winter, Jr., The Unions and the Cities 95-96 (1971). We conclude that the Michigan Court of Appeals was correct in viewing this Court’s decisions in Hanson and Street as controlling in the present case insofar as the service charges are applied to collective-bargaining, contract administration, and grievance-adjustment purposes.
C
Because the Michigan Court of Appeals ruled that state law “sanctions the use of nonunion members’ fees for purposes other than collective bargaining,” 60 Mich. App., at 99, 230 N. W. 2d, at 326, and because the complaints allege that such expenditures were made, this case presents constitutional issues not decided in Hanson or Street. Indeed Street embraced an interpretation of the Railway Labor Act not without its difficulties, see 367 U. S., at 784-786 (Black, J., dissenting); id., at 799-803 (Frankfurter, J., dissenting), precisely to avoid facing the constitutional issues presented by the use of union-shop dues for political and ideological purposes unrelated to collective bargaining, id., at 749-750. Since the state court’s construction of the Michigan statute *233is authoritative, however, we must confront those issues in this case.29
Our decisions establish with unmistakable clarity that the freedom of an individual to associate for the purpose of advancing beliefs and ideas is protected by the First and Fourteenth Amendments. E. g., Elrod v. Burns, 427 U. S. 347, 355-357 (plurality opinion); Cousins v. Wigoda, 419 U. S. 477, 487; Kusper v. Pontikes, 414 U. S. 51, 56-57; NAACP v. Alabama ex rel. Patterson, 357 U. S. 449, 460-461. *234Equally clear is the proposition that a government may not require an individual to relinquish rights guaranteed him by the First Amendment as a condition of public employment. E. g., Elrod v. Burns, supra, at 357-360, and cases cited; Perry v. Sindermann, 408 U. S. 593; Keyishian v. Board of Regents, 385 U. S. 589. The appellants argue that they fall within the protection of these cases because they have been prohibited, not from actively associating, but rather from refusing to associate. They specifically argue that they may constitutionally prevent the Union’s spending a part of their required service fees to contribute to political candidates and to express political views unrelated to its duties as exclusive bargaining representative. We have concluded that this argument is a meritorious one.
One of the principles underlying the Court’s decision in Buckley v. Valeo, 424 U. S. 1, was that contributing to an organization for the purpose of spreading a political message is protected by the First Amendment. Because “[m]aking a contribution . . . enables like-minded persons to pool their resources in furtherance of common political goals,” id., at 22, the Court reasoned that limitations upon the freedom to contribute “implicate fundamental First Amendment interests,” id., at 23.30
The fact that the appellants are compelled to make, rather than prohibited from making, contributions for political purposes works no less an infringement of their constitutional rights.31 For at the heart of the First Amendment is the *235notion that an individual should be free to believe as he will, and that in a free society one’s beliefs should be shaped by his mind and his conscience rather than coerced by the State. See Elrod v. Burns, supra, at 356-357; Stanley v. Georgia, 394 U. S. 557, 565; Cantwell v. Connecticut, 310 U. S. 296, 303-304. And the freedom of belief is no incidental or secondary aspect-of the First Amendment’s protections:
“If there is any fixed star in our constitutional constellation, it is that no official, high or petty, can prescribe what shall be orthodox in politics, nationalism, religion, or other matters of opinion or force citizens to confess by word or act their faith therein.” West Virginia Bd. of Ed. v. Barnette, 319 U. S. 624, 642.
These principles prohibit a State from compelling any individual to affirm his belief in God, Torcaso v. Watkins, 367 U. S. 488, or to associate with a political party, Elrod v. Burns, supra; see 427 U. S., at 363-364, n. 17, as a condition of retaining public employment. They are no less applicable to the case at bar, and they thus prohibit the appellees from requiring any of the appellants to contribute to the support of an ideological cause he may oppose as a condition of holding a job as a public school teacher.
We do not hold that a union cannot constitutionally spend funds for the expression of political views, on behalf of political candidates, or toward the advancement of other ideological causes not germane to its duties as collective-bargaining representative.32 Rather, the Constitution requires only that *236such expenditures be financed from charges, dues, or assessments paid by employees who do not object to advancing those ideas and who are not coerced into doing so against their will by the threat of loss of governmental employment.
There will, of course, be difficult problems in drawing lines between collective-bargaining activities, for which contributions may be compelled, and ideological activities unrelated to collective bargaining, for which such compulsion is prohibited.33 The Court held in Street, as a matter of statutory construction, that a similar line must be drawn under the Railway Labor Act, but in the public sector the line may be somewhat hazier. The process of establishing a written collective-bargaining agreement prescribing the terms and conditions of public employment may require not merely concord at the bargaining table, but subsequent approval by other public authorities; related budgetary and appropriations decisions might be seen as an integral part of the bargaining process. We have no occasion in this case, however, to try to define such a dividing line. The case comes to us after a judgment on the pleadings, and there is no evidentiary record of any kind. The allegations in the complaints are general ones, see supra, at 212-213, and the parties have neither briefed nor argued the question of what specific Union activities in the present context properly fall under the definition of collective bargaining. The lack of factual concreteness and adversary presentation to aid us in approaching the difficult line-drawing questions highlights the *237importance of avoiding unnecessary decision of constitutional questions.34 . All that we decide is that the general allegations in the complaints, if proved, establish a cause of action under the First and Fourteenth Amendments.
Ill
In determining what remedy will be appropriate if the appellants prove their allegations, the objective must be to devise a way of preventing compulsory subsidization of ideological activity by employees who object thereto without restricting the Union’s ability to require every employee to contribute to the cost of collective-bargaining activities.35 This task is simplified by the guidance to be had from prior decisions. In Street, the plaintiffs had proved at trial that expenditures were being made for political purposes of various kinds, and *238the Court found those expenditures illegal under the Railway-Labor Act. See supra, at 219-220. Moreover, in that case each plaintiff had “made known to the union representing his craft or class his dissent from the use of his money for political causes which he opposes.” 367 U. S., at 750; see id., at 771. The Court found that “[i]n that circumstance, the respective unions were without power to use payments thereafter tendered by them for such political causes.” Ibid. Since, however, Hanson had established that the union-shop agreement was not unlawful as such, the Court held that to enjoin its enforcement would “[sweep] too broadly.” 367 U. S., at 771. The Court also found that an injunction prohibiting the union from expending dues for political purposes would be inappropriate, not only because of the basic policy reflected in the Norris-La Guardia Act36 against enjoining labor unions, but also because those union members who do wish part of their dues to be used for political purposes have a right to associate to that end “without being silenced by the dissenters.” Id., at 772-773.37
After noting that “dissent is not to be presumed” and that only employees who have affirmatively made known to the union their opposition to political uses of their funds are entitled to relief, the Court sketched two possible remedies: First, “an injunction against expenditure for political causes opposed by each complaining employee of a sum, from those moneys to be spent by the union for political purposes, which is so much of the moneys exacted from him as is the proportion of the union’s total expenditures made for such political activities to the union’s total budget”; and second, restitution of a fraction of union dues paid equal to' the fraction of total union expenditures that were made for political purposes opposed by the employee. Id., at 774-775.38
*239The Court again considered the remedial question in Railway Clerks v. Allen, 373 U. S. 113. In that case employees who had refused to pay union-shop dues obtained injunctive relief in state court against enforcement of the union-shop agreement. The employees had not notified the union prior to bringing the lawsuit of their opposition to political expenditures, and at trial, their testimony was principally that they opposed such expenditures, as a general matter. Id., at 118— 119, n. 5. The Court held that the employees had adequately established their cause of action by manifesting “opposition to any political expenditures by the union,” id., at 118 (emphasis in original), and that the requirement in Street that dissent be affirmatively indicated was satisfied by the allegations in the complaint that was filed, 373 U. S., at 118-119, and n. 6.39 The Court indicated again the appropriateness of the two remedies sketched in Street; reversed the judgment affirming issuance of the injunction; and remanded for determination of which expenditures were properly to be characterized as political and what percentage of total union expenditures they constituted.40
*240The Court in Allen described a “practical decree” that could properly be entered, providing for (1) the refund of a portion of the exacted funds in the proportion that union political expenditures bear to total union expenditures, and (2) the reduction of future exactions by the same proportion. 373 U. S., at 122. Recognizing the difficulties posed by judicial administration of such a remedy, the Court also suggested that it would be highly desirable for unions to adopt a “voluntary plan by which dissenters would be afforded an internal union remedy.” Ibid. This last suggestion is particularly relevant to the case at bar, for the Union has adopted such a plan since the commencement of this litigation.41
Although Street and Allen were concerned with statutory rather than constitutional violations, that difference surely could not justify any lesser relief in this case. Judged by the standards of those cases, the Michigan Court of Appeals’ ruling that the appellants were entitled to no relief at this juncture was unduly restrictive. For all the reasons *241outlined in Street, the court was correct in denying the broad injunctive relief requested. But in holding that as a prerequisite to any relief each appellant must indicate to the Union the specific expenditures to which he objects, the Court of Appeals ignored the clear holding of Allen. As in Allen, the employees here indicated in their pleadings that they opposed ideological expenditures of any sort that are unrelated to collective bargaining. To require greater specificity would confront an individual employee with the dilemma of relinquishing either his right to withhold his support of ideological causes to which he objects or his freedom to maintain his own beliefs without public disclosure.42 It would also place on each employee the considerable burden of monitoring all of the numerous and shifting expenditures made by the Union that are unrelated to its duties as exclusive bargaining representative.
The Court of Appeals thus erred in holding that the plaintiffs are entitled to no relief if they can prove the *242allegations contained in their complaints,43 and in depriving them of an opportunity to establish their right to appropriate relief, such, for example, as the kind of remedies described in Street and Allen.44 In view of the newly adopted Union internal remedy, it may be appropriate under Michigan law, even if not strictly required by any doctrine of exhaustion of remedies, to defer further judicial proceedings pending the voluntary utilization by the parties of that internal remedy as a possible means of settling the dispute.45
The judgment is vacated, and the case is remanded for further proceedings not inconsistent with this opinion.
It is so ordered.
The certification was authorized by Mich. Comp. Laws §423.211 (1970), which provides:
“Representatives designated or selected for purposes of collective bargaining by the majority of the public employees in a unit appropriate for such purposes, shall be the exclusive representatives of all the public employees in such unit for the purposes of collective bargaining in respect to rates of pay, wages, hours of employment or other conditions of employment, and shall be so recognized by the public employer: Provided, That any individual employee at any time may present grievances to his employer and have the grievances adjusted, without intervention of the bargaining representative, if the adjustment is not inconsistent with the terms of a collective bargaining contract or agreement then in effect, provided that the bargaining representative has been given opportunity to be present at such adjustment.”
Some of the plaintiffs were Union members and were paying agency-shop fees under protest; others had refused either to pay or to join the Union; still others had joined the Union and paid the fees without any *213apparent protest. The agency-shop clause itself prohibits the discharge of an employee engaged in litigation concerning his service charge obligation until his legal remedies have been exhausted, and no effort to enforce the clause against any of the plaintiffs has been made.
The nature of these activities and of the objections to them were not described in any further detail.
A grant of summary judgment under Mich. Gen. Ct. Rule 117.2 (1) is equivalent to dismissal under Fed. Rule Civ. Proc. 12 (b) (6) for failure *214to state a claim upon which relief can be granted. See Bielski v. Wolverine Ins. Co., 379 Mich. 280, 150 N. W. 2d 788; Hiers v. Brownell, 376 Mich. 225, 136 N. W. 2d 10; Handwerk v. United Steelworkers of America, 67 Mich. App. 747, 242 N. W. 2d 514; Crowther v. Ross Chem. & Mfg. Co., 42 Mich. App. 426, 202 N. W. 2d 577.
The only material difference was that Abood was not a class action.
The Abood complaint prayed for declaratory and injunctive relief against discharge of any teacher for failure to pay the service charge, and for such other relief as might be deemed appropriate.
That section provides in relevant part:
“[N]othing in this act or in any law of this state shall preclude a public employer from making an agreement with an exclusive bargaining representative as defined in section 11 to require as a condition of employment that all employees in the bargaining unit pay to the *215exclusive bargaining representative a service fee equivalent to the amount of dues uniformly required of members of the exclusive bargaining representative . . . .”
The purpose of the remand was not expressly indicated. The trial court had entered judgment for the defendants upon the ground that the complaint failed to state a claim on which relief could be granted. The state appellate court’s ruling that the 1973 amendment was not to be given retroactive effect did not undermine the validity of the trial court’s judgment, for the Court of Appeals’ determination that any possibly meritorious claims raised by the plaintiffs were prematurely asserted required the same result as that ordered by the trial court. The remand “as to the retroactive application given to [the 1973 amendment]” must, therefore, have been only for a ministerial purpose, such as the correction of language in the trial court’s judgment for the defendants. In these circumstances, the judgment of the Court of Appeals is final for purposes of 28 U. S. C. § 1257 (2). See, e. g., Pope v. Atlantic Coast Line R. Co., 345 U. S. 379, 382; Republic Natural Gas Co. v. Oklahoma, 334 U. S. 62, 67-68; Richfield Oil Corp. v. State Bd. of Equalization, 329 U. S. 69, 72-74.
At oral argument the suggestion was made that this case might be moot. The only agency-shop clause placed in issue by the complaints was contained in a collective-bargaining agreement that expired in 1971. That clause was unenforceable as a matter of state law after the decision in Smigel and the ruling of the State Court of Appeals in the present cases that the 1973 statute should not be given retroactive application.
But both sides acknowledged in their briefs submitted to the Michigan Court of Appeals that a successor collective-bargaining agreement effective in 1973 contained substantially the identical agency-shop provision. The Court of Appeals appears to have taken judicial notice of this agreement in rendering its decision, for otherwise its ruling that the 1973 amendment was not retroactive would have disposed of the case without the need to consider any constitutional questions. Since the state appellate court considered the 1973 agreement to be part of the record in making its ruling, we proceed upon the same premise.
The fact that the 1973 agreement may have expired since the state appellate court rendered its decision does not affect the continuing vitality of this controversy for Art. Ill purposes. Some of the plaintiffs in both Warczak and Abood either refused to pay the service charge or paid it under protest. See n. 2, supra. Their contention that they cannot *217constitutionally be compelled to contribute the service charge, or at least some portion of it, thus survives the expiration of the collective-bargaining agreement itself.
Under a union-shop agreement, an employee must become a member of the union within a specified period of time after hire, and must as a member pay whatever union dues and fees are uniformly required. Under both the National Labor Relations Act and the Railway Labor Act, “[i]t is permissible to condition employment upon membership, but membership, insofar as it has significance to employment rights, may in turn be conditioned only upon payment of fees and dues.” NLRB v. General Motors, 373 U. S. 734, 742. See 29 U. S. C. § 158 (a) (3); 45 U. S. C. § 152 Eleventh, quoted in n. 11, infra. Hence, although a union shop denies an employee the option of not formally becoming a union member, under federal law it is the “practical equivalent” of an agency shop, NLRB v. General Motors, supra, at 743. See also Lathrop v. Donohue, 367 U. S. 820, 828.
Hanson was concerned simply with the requirement of financial support for the union, and did not focus on the question whether the additional requirement of a union-shop arrangement that each employee formally join the union is constitutionally permissible. See NLRB v. General Motors, supra, at 744 (“Such a difference between the union and agency shop may be of great importance in some contexts . . .”); cf. Storer v. Brown, 415 U. S. 724, 745-746. As the agency shop before us does not impose that additional requirement, we have no occasion to address that question.
In relevant p£.rt, that section provides:
“Notwithstanding any other provisions of this chapter, or of any other statute or law of the United States, or Territory thereof, or of any State, any carrier or carriers as defined in this chapter and a labor organization or labor organizations duly designated and authorized to represent employees in accordance with the requirements of this chapter shall be permitted—
“(a) to make agreements, requiring, as a condition of continued employment, that within sixty days following the beginning of such employment, or the effective date of such agreements, whichever is the later, all employees shall become members of the labor organization representing their craft or class: Provided, That no' such agreement shall require such condition of employment with respect to employees to whom membership is not available upon the same terms and conditions as are generally applicable to any other member or with respect to employees to whom membership was denied or terminated for any reason other than the failure of the employee to tender the periodic dues, initiation fees, and assessments (not including fines and penalties) uniformly required as a condition of acquiring or retaining membership.”
Unlike § 14 (b) of the National Labor Relations Act, 29 U. S. C. § 164 (b), the Railway Labor Act pre-empts any attempt by a State to prohibit a union-shop agreement. Had it not been for that federal statute, the union-shop provision at issue in Hanson would have been invalidated under Nebraska law. The Hanson Court accordingly reasoned that government action was present: “[T]he federal statute is the source of the power and authority by which any private rights are lost or sacrificed. . . . The enactment of the federal statute authorizing union shop agreements is the governmental action on which the Constitution operates . . . .” 351 U. S., at 232. See also id., at 232 n. 4 (“Once courts enforce the agreement the sanction of government is, of course, put behind *219them. See Shelley v. Kraemer, 334 U. S. 1; Hurd v. Hodge, 334 U. S. 24; Barrows v. Jackson, 346 U. S. 249”).
In suggesting that Street “significantly undercut,” and constituted a “rethinking” of, Hanson, post, at 247, the opinion concurring in the judgment loses sight of the fact that the record in Street, unlike that in Hanson, potentially presented constitutional questions arising from union expenditures for ideological purposes unrelated to collective bargaining.
29 U. S. C. § 151 et seq.
See Hines v. Anchor Motor Freight, Inc., 424 U. S. 554, 564:
“Because ‘[t]he collective bargaining system as encouraged by Congress and administered by the NLRB of necessity subordinates the interests of an individual employee to the collective interests of all employees in a bargaining unit,’ Vaca v. Sipes, 386 U. S. 171, 182 (1967), the controlling statutes have long been interpreted as imposing upon the bargaining agent a responsibility equal in scope to its authority, ‘the responsibility and duty of fair representation.’ Humphrey v. Moore, supra, at 342. The union as the statutory representative of the employees is ‘subject always to complete good faith and honesty of purpose in the exercise of its discretion.’ Ford Motor Co. v. Huffman, [345 U. S. 330, 338], Since Steele v. Louisville & N. R. Co., 323 U. S. 192 (1944), with respect to the railroad industry, and Ford Motor Co. v. Huffman, supra, and Syres v. Oil Workers, 350 U. S. 892 (1955), with respect to those industries reached by the National Labor Relations Act, the duty of fair representation has served as a ‘bulwark to prevent arbitrary union *222conduct against individuals stripped of traditional forms of redress by the provisions of federal labor law.’ Vaca v. Sipes, supra, at 182.”
See infra, at 233-235.
See, e. g., infra, at 229.
See n. 1, supra.
See supra, at 214, and n. 7.
See Hanson, 351 U. S., at 233-234 (footnote omitted):
“Powerful arguments have been made here that the long-run interests of labor would be better served by the development of democratic traditions in trade unionism without the coercive element of the union or the closed shop. Mr. Justice Brandéis, who had wide experience in labormangement relations prior to his appointment to the Court, wrote forcefully against the closed shop. He feared that the closed shop would swing the pendulum in the opposite extreme and substitute ‘tyranny of the employee’ for ‘tyranny of the employer.’ But the question is one of policy with which the judiciary has no concern, as Mr. Justice Brandéis would have been the first to concede. Congress, acting within its constitutional powers, has the final say on ’policy issues. If it acts unwisely, the electorate can make a change. The task of the judiciary ends once it appears that the legislative measure adopted is relevant or appropriate to the constitutional power which Congress exercises. The ingredients of industrial peace and stabilized labor-management relations are numerous and complex. They may well vary from age to age and from industry to industry. What would be needful one decade might be anathema the next. The decision rests with the policy makers, not with the judiciary.”
See also Adair v. United States, 208 U. S. 161, 191-192 (Holmes, J., dissenting):
“I quite agree that the question what and how much good labor unions do, is one on which intelligent people may differ, — I think that laboring men sometimes attribute to them advantages, as many attribute to combinations of capital disadvantages, that really are due to economic conditions of a far wider and deeper kind — but I could not pronounce it unwarranted if Congress should decide that to foster a strong union was for the best interest, not only of the men, but of the railroads and the country at large.”
See, e. g., cases cited, infra, at 233-235.
See supra, at 218, and n. 12.
Nothing in our opinion embraces the “premise that public employers are under no greater constitutional constraints than their counterparts in the private sector,” post, at 245 (Powell, J., concurring in judgment), or indicates that private collective-bargaining agreements are, without more, subject to constitutional constraints, see post, at 252. We compare the agency-shop agreement in this case to those executed under the Railway Labor Act simply because the existence of governmental action in both contexts requires analysis of the free expression question.
It is somewhat startling, particularly in view of the concession that *227Hanson was premised on a finding that governmental action was present, see post, at 246 (Powell, J., concurring in judgment), to read in Mr. Justice Powell’s concurring opinion that Hanson and Street “provide little or no guidance for the constitutional issues presented in this case,” post, at 254. Hanson nowhere suggested that the constitutional scrutiny of the agency-shop agreement was watered down because the governmental action operated less directly than is true in a case such as the present one. Indeed, Mr. Justice Douglas, the author of Hanson, expressly repudiated that suggestion:
“Since neither Congress nor the state legislatures can abridge [First Amendment] rights, they cannot grant the power to private groups to abridge them. As I read the First Amendment, it forbids any abridgment by government whether directly or indirectly.” Street, 367 U. S., at 777 (concurring opinion).
See, e. g., K. Hanslowe, The Emerging Law of Labor Relations in Public Employment (1967); H. Wellington & R. Winter, Jr., The Unions and the Cities (1971); Hildebrand, The Public Sector, in J. Dunlop and N. Chamberlain (eds.), Frontiers of Collective Bargaining 125-154 (1967); Rehmus, Constraints on Local Governments in Public Employee Bargaining, 67 Mich. L. Rev. 919 (1969); Shaw & Clark, The Practical Differences Between Public and Private Sector Collective Bargaining, 19 U. C. L. A. L. Rev. 867 (1972); Smith, State and Local Advisory Reports on Public Employment Labor Legislation: A Comparative Analysis, 67 Mich. L. Rev. 891 (1969); Summers, Public Employee Bargaining: A Political Perspective, 83 Yale L. J. 1156 (1974); Project, Collective Bargaining and Politics in Public Employment, 19 U. C. L. A. L. Rev. 887 (1972). The general description in the text of the differences between private- and public-sector collective bargaining is drawn from these sources.
See, e. g., Anderson, Strikes and Impasse Resolution in Public Employment, 67 Mich. L. Rev. 943 (1969); Burton & Krider, The Role and Consequences of Strikes by Public Employees, 79 Yale L. J. 418 (1970); Hildebrand, supra, n. 24; Kheel, Strikes and Public Employment, 67 Mich. L. Rev. 931 (1969); Wellington & Winter, The Limits of Collective Bargaining in Public Employment, 78 Yale L. J. 1107 (1969); Wellington & Winter, More on Strikes by Public Employees, 79 Yale L. J. 441 (1970).
See n. 20, supra.
Employees of state and local governments may be subject to a “little Hatch Act” designed to ensure that government operates effectively and fairly, that public confidence in government is not undermined, and that government employees do not become a powerful political machine controlled by incumbent officials. See, e. g., Broadrick v. Oklahoma, 413 U. S. 601, 603-604; CSC v. Letter Carriers, 413 U. S. 548, 554-567. Moreover, there may be limits on the extent to which an employee in a sensitive or policymaking position may freely criticize his superiors and the policies they espouse. See Pickering v. Board of Education, 391 U. S. 563, 570 n. 3.
See, e. g., Wooley v. Maynard, 430 U. S. 705, 714 (the First Amendment “secures the right to proselytize religious, political, and ideological causes”) (emphasis supplied); Young v. American Mini Theatres, 427 U. S. 50, 70 (plurality opinion) (protection of the First Amendment is fully applicable to the communication of social, political, or philosophical messages); id., at 87 (dissenting opinion) (even offensive speech that does not address “important topics” is not less worthy of constitutional protection); Police Dept. of Chicago v. Mosley, 408 U. S. 92, 95-96; Cohen v. California, 403 U. S. 15, 25, quoting Winters v. New York, 333 U. S. 507, 528 (Frankfurter, J., dissenting); Street v. New York, 394 U. S. 576, 593, quoting West Virginia Bd. of Ed. v. Barnette, 319 U. S. 624, 641-642 (“'[N]o official, high or petty, can prescribe what shall be orthodox in politics, nationalism, religion, or other matters of opinion’ ”) (emphasis supplied); NAACP v. Button, 371 U. S. 415, 444-445; Kingsley Pictures Corp. v. Regents, 360 U. S. 684, 688 (suppression of a motion picture because it expresses the idea that under certain circumstances adultery may 'be proper behavior strikes at the very heart of First Amendment protection) ; NAACP v. Alabama ex rel. Patterson, 357 U. S. 449, 460 (“it is immaterial whether the beliefs sought to be advanced . . . pertain to political, economic, religious, or cultural matters”); Roth v. United States, 354 U. S. 476, 488, quoting Thornhill v. Alabama, 310 U. S. 88, 101-102.
In Lathrop v. Donohue, 367 U. S. 820, a companion case to Street, a lawyer sued for the refund of dues paid (under protest) to the integrated Wisconsin State Bar. The dues were required as a condition of practicing law in Wisconsin. The plaintiff contended that the requirement violated his constitutionally protected freedom of association because the dues were used by the State Bar to formulate and to support legislative proposals concerning the legal profession to which the plaintiff objected.
A plurality of four Justices found that the requirement was not on its face unconstitutional, relying on the analogy to Hanson. And the plurality ruled, as had the Court in Hanson, that the constitutional questions tendered were not ripe, for the Court was nowhere “clearly apprised as to the views of the appellant on any particular legislative issues on which the State Bar has taken a position, or as to the way in which and the degree to which funds compulsorily exacted from its members are used to support the organization’s political activities.” 367 U. S., at 845-846. The other five Members of the Court disagreed with the plurality and thought that the constitutional questions ought to be reached. Three Justices would have upheld the constitutionality of using compulsory dues to finance the State Bar’s legislative activities even where opposed by dissenting members. See id., at 848 (Harlan, J., concurring in judgment); id., at 865 (Whittaker, J., concurring in result). The other two Justices would have held such activities to be unconstitutional. See ibid. (Black, J., dissenting); id., at 877 (Douglas, J., dissenting).
The only proposition about which a majority of the Court in Lathrop agreed was that the constitutional issues should be reached. However, due to the disparate views of those five Justices on the merits and the failure of the other four Members of the Court to discuss the constitutional questions, Lathrop does not provide a clear holding to guide us in adjudicating the constitutional questions here presented.
See also Shelton v. Tucker, 364 U. S. 479 (state statute which required every teacher to file annually an affidavit listing every organization to which he had belonged or regularly contributed is unconstitutional because of its unlimited and indiscriminate interference with freedom of association).
This view has long been held. James Madison, the First Amendment’s author, wrote in defense of religious liberty: “Who does not see . . . [t]hat the same authority which can force a citizen to contribute three pence only of his property for the support of any one establishment, may *235force him to conform to any other establishment in all cases whatsoever?” 2 The Writings of James Madison 186 (Hunt ed. 1901). Thomas Jefferson agreed that “ 'to compel a man to furnish contributions of money for the propagation of opinions which he disbelieves, is sinful and tyrannical.’ ” I. Brant, James Madison: The Nationalist 354 (1948).
To the extent that this activity involves support of political candidates, it must, of course, be conducted consistently with any applicable (and constitutional) system of election campaign regulation. See gen*236erally Buckley v. Valeo, 424 U. S. 1; Developments in the Law — Elections, 88 Harv. L. Rev. 1111,1237-1271 (1975).
The appellants’ complaints also alleged that the Union carries on various “social activities” which are not open to nonmembers. It is unclear to what extent such activities fall outside the Union’s duties as exclusive representative or involve constitutionally protected rights of association. Without greater specificity in the description of such activities and the benefit of adversary argument, we leave those questions in the first instance to the Michigan courts.
A further reason to avoid anticipating difficult constitutional questions in this case is the possibility that the dispute may be settled by resort to a newly adopted internal Union remedy. See infra, at 240, and n. 41.
It is plainly not an adequate remedy to limit the use of the actual dollars collected from dissenting employees to collective-bargaining purposes: “[Such a limitation] is of bookkeeping significance only rather than a matter of real substance. It must be remembered that the service fee is admittedly the exact equal of membership initiation fees and monthly dues . . . and that . . . dues collected from members may be used for a ‘variety of purposes, in addition to meeting the union’s costs of collective bargaining.’ Unions ‘rather typically’ use their membership dues ‘to do those things which the members authorize the union to do in their interest and on their behalf.’ If the union’s total budget is divided between collective bargaining and institutional expenses and if nonmember payments, equal to those of a member, go entirely for collective bargaining costs, the nonmember will pay more of these expenses than his pro rata share. The member will pay less and to that extent a portion of his fees and dues is available to pay institutional expenses. The union’s budget is balanced. By paying a larger share of collective bargaining costs the nonmember subsidizes the union’s institutional activities.” Retail Clerks v. Schermerhorn, 373 U. S. 746, 753-754.
29 U. S. C. §§ 101-115.
See supra, at 234, and n. 30.
In proposing a restitution remedy, the Street opinion made clear *239that “[t]here should be no necessity, however, for the employee to trace his money up to and including its expenditure; if the money goes into general funds and no separate accounts of receipts and expenditures of the funds of individual employees are maintained, the portion of his money the employee would be entitled to recover would be in the same proportion that the expenditures for political purposes which he had advised the union he disapproved bore to the total union budget.” 367 U. S., at 776.
Allen can be viewed as a relaxation of the conditions established in Street governing eligibility for relief. See Allen, 373 U. S., at 129-131 (Harlan, J., concurring in part and dissenting in part). Street seemed to imply that an employee would be required to identify the particular causes which he opposed. 367 U. S., at 774-775. Any such implication was clearly disapproved in Allen, and, as explained today, see infra, at 241, there are strong reasons for preferring the approach of Allen.
The Court in Allen went on to elaborate:
“Since the unions possess the facts and records from which the proportion of political to total union expenditures can reasonably be calcu*240lated, basic considerations of fairness compel that they, not the individual employees, bear the burden of proving such proportion. Absolute precision in the calculation of such proportion is not, of course, to be expected or required; we are mindful of the difficult accounting problems that may arise. And no decree would be proper which appeared likely to infringe the unions’ right to expend uniform exactions under the union-shop agreement in support of activities germane to collective bargaining and, as well, to expend nondissenters’ such exactions in support of political activities.” 373 U. S., at 122.
Under the procedure adopted by the Union, as explained in the appellees’ brief, a dissenting employee may protest at the beginning of each school year the expenditure of any part of his agency-shop fee for “ 'activities or causes of a political nature or involving controversial issues of public importance only incidentally related to wages, hours, and conditions of employment.’ ” The employee is then entitled to a pro rata refund of his service charge in accordance with the calculation of the portion of total Union expenses for the specified purposes. The calculation is made in the first instance by the Union, but is subject to review by an impartial board.
In Buckley v. Valeo, the Court recognized that compelled disclosure of political campaign contributions and expenditures “can seriously infringe on privacy of association and belief guaranteed by the First Amendment.” 424 U. S., at 64. See, e. g., Gibson v. Florida Legislative Comm., 372 U. S. 539; Bates v. Little Rock, 361 U. S. 516; NAACP v. Alabama ex rel. Patterson, 357 U. S. 449. The Court noted that “the invasion of privacy of belief may be as great when the information sought concerns the giving and spending of money as when it concerns the joining of organizations,” and that therefore our past decisions have extended constitutional protection to contributors and members interchangeably. 424 U. S., at 66, citing California Bankers Assn. v. Shultz, 416 U. S. 21, 78-79 (Powell, J., concurring); Bates v. Little Rock, supra, at 518; and United States v. Rumely, 345 U. S. 41.
Disclosure of the specific causes to which an individual employee is opposed (which necessarily discloses, by negative implication, those causes the employee does support) may subject him to “economic reprisal, . . . threat of physical coercion, and other manifestations of public hostility,” and might dissuade him from exercising the right to withhold support “because of fear of exposure of [his] beliefs . . . and of the consequences of this exposure.” NAACP v. Alabama ex rel. Patterson, supra, at 462-463.
Although the appellants did not specifically pray for either of the remedies described in Street and Allen, the complaints in both Abood and Warczalc included a general prayer for “such further and other relief as may be necessary, or may to the Court seem just and equitable.”
The Warczalc complaint was styled as a class action, but the trial court dismissed the complaint without addressing the propriety of class relief under Michigan law. We therefore have no occasion to address the question whether an individual employee who is not a named plaintiff but merely a member of the plaintiff class is, without more, entitled to relief under Street and Allen as a matter of federal law.
See supra, at 237-240, and nn. 38, 40.
We express no view as to the constitutional sufficiency of the internal remedy described by the appellees. If the appellants initially resort to that remedy and ultimately conclude that it is constitutionally deficient in some respect, they would of course be entitled to judicial consideration of the adequacy of the remedy.