delivered the opinion of the Court.
Petitioner Jess H. Hisquierdo in 1975 sued to dissolve his marriage with respondent Angela Hisquierdo. The Supreme Court of California, in applying the- State’s community property rules, awarded respondent an interest in petitioner’s expectation of ultimately receiving benefits under the Railroad Retirement Act of 1974, 88 Stat. 1305, 45 U. S. C. § 231 et seq. The issue here is whether the Act prohibits this allocation and division of benefits.
I
The Railroad Retirement Act, first passed in 1934, 48 Stat. 1283, provides a system of retirement and disability benefits for persons who pursue careers in the railroad industry. Its sponsors felt that the. Act would encourage older workers to retire by providing them with the means “to enjoy the closing days of their lives with peace of mind and physical comfort,” and so would “assure more rapid advancement in the service” *574and also more jobs for younger workers.1 Both employees and carriers pay a federal tax2 which funds a Railroad Retirement Account. The Railroad Retirement Board, provided for by the Act, 45 U. S. C. § 231f, disburses benefits from the account to each eligible “individual,” 45 U. S. C. § 231a.
In its modern form,3 the Act resembles both a private pension program and a social welfare plan. It provides two tiers of benefits. The upper tier, like a private pension, is tied to earnings and career service. An employee, to be eligible for benefits, must work in the industry 10 years. Absent disability, no benefit is paid, however, until the employee either reaches age 62 or is at least 60 years old and has completed 30 years of service. 45 U. S. C. § 231a (a) (1). Like a social welfare or insurance scheme, the taxes paid by *575and on behalf of an employee do not necessarily correlate with the benefits to which the employee may be entitled. Since 1950, the Railroad Retirement Account has received substantial transfers from the social security system, and legislative changes made in 1974 were expected to require a one-time infusion of $7 billion in general tax revenues.4
The lower, and larger, tier of benefits corresponds exactly to those an employee would expect to receive were he covered by the Social Security Act. 45 U. S. C. § 231b (a)(1). The Act provides special benefits for the children or parent of a worker who dies. §§ 231a (d)(1) (iii) and (iv). It also makes detailed provision for a worker’s spouse; the spouse qualifies for an individual benefit if the spouse lives with the employee, and receives regular contributions from the employee for support, or is entitled to support from the employee pursuant to a court order. § 231a (c)(3)(i). The benefits terminate, however, when the spouse and the employee are absolutely divorced. § 231d (c) (3).5
Like Social Security, and unlike most private pension plans, railroad retirement benefits are not contractual. Congress may alter, and even eliminate, them at any time.6 This vulnerability to congressional edict contrasts strongly with the protection Congress has afforded recipients from creditors, *576taxgatherers, and all those who would “anticipate” the receipt of benefits:
“Notwithstanding any other law of the United States, or of any State, territory, or the District of Columbia, no annuity or supplemental annuity shall be assignable or be subject to any tax or to garnishment, attachment, or other legál process under any circumstances whatsoever, nor shall the payment thereof be anticipated . . . 45 U. S. C. § 231m.7
In 1975, Congress made an exception to § 231m and similar provisions in all other federal benefit plans. Concerned about recipients who were evading support obligations and thereby throwing children and divorced spouses on the public dole, Congress amended the Social Security Act by adding a new provision, § 459, to the effect that, notwithstanding any contrary law, federal benefits may be reached to satisfy a legal obligation for child support or alimony. 88 Stat. 2357, 42 U. S. C. § 659.8 In 1977, shortly before the issuance of the Supreme Court of California's opinion in this case, Congress added to the Social Security Act a definitional statute, § 462 (c), which relates to §459 and limits “alimony” to its tra*577ditional common-law meaning of spousal support. That statute states specifically that “alimony”
“does not include any payment or transfer of property or its value by an individual to his spouse or former spouse in compliance with any community property settlement, equitable distribution of property, or other division of property between spouses or former spouses.” Pub. L. 95-30, Tit. V, § 501 (d), 91 Stat. 160.9
II
Petitioner and respondent, who are California residents, were married in Nevada in 1958. They separated in 1972. In 1975 petitioner instituted this proceeding in the Superior Court of California, County of Los Angeles, for dissolution of the marriage. California, like seven other States, by statute has a form of community property law brought to our shores by the Spanish. In California the
“statute proceeds upon the theory that the marriage, in respect to property acquired during its existence, is a community of which each spouse is a member, equally contributing by his or her industry to its prosperity, and possessing an equal right to succeed to the property after *578dissolution, in case of surviving the other.” Meyer v. Kinzer, 12 Cal. 247, 251 (1859).10
Community property includes the property earned by either spouse during the union, as well as that given to both during the marriage. See Cal. Civ. Code Ann. §687 (West 1954). It contrasts with separate property, which includes assets owned by a spouse before marriage or acquired separately by a spouse during marriage through gift. In community property States, ownership turns on the method and timing of acquisition, while the traditional view in common-law States is that ownership depends on title.11 On the theory that petitioner acquired an expectation of receiving Railroad Retirement Act benefits due in part to his labors while married, respondent (but not petitioner) in the California divorce proceeding listed that expectation as an item of community property subject to division upon dissolution of the marriage. App. 2, 3.
At the time, petitioner, a railroad machinist, was aged 55. He had worked from 1942 to 1975 for the Atchison, Topeka & Santa Fe Railway, and subsequently entered the employ of the Los Angeles Union Passenger Terminal. Both jobs fell within the Act. Because petitioner had 30 years’ service, the statute would permit him to receive benefits if and when he attained age 60. Respondent calculated that she was entitled to half the benefits attributable to his labor during the 14 years of their marriage, or, by her estimates, 19.6% of the total benefits to be received.12 The couple has no children.
*579Respondent in 1975 was 53. She had worked for the preceding eight years in a factory. She had been gainfully employed for 35 years and had an expectation that upon her retirement she would be entitled to benefits under the Social Security Act. Neither petitioner nor respondent claimed that her expectation of receiving those benefits was community property. App. 2, 3.
Respondent, and petitioner, too, waived their claims to spousal support. Tr. of Oral Arg. 5, 33. After its hearing, the Superior Court awarded petitioner the couple’s home, in which they had a $12,828 equity, and its furnishings. Respondent was awarded an automobile and a small interest in a mutual fund. The court, however, ordered petitioner to reimburse respondent, by installment payments, for her half of the equity in the home and protected this obligation with an imposed lien in her favor on the real estate. The court ruled that no community interest existed either in petitioner’s prospect of receiving Railroad Retirement Act benefits or in respondent’s anticipation of benefits under the Social Security Act. App. 4.
The California Court of Appeal affirmed. In re Hisquierdo, 133 Cal. Rptr. 684 (2d Dist. 1976). The court, noting that under this Court’s Supremacy Clause cases Congress has the power to determine the character of a federally created benefit, rejected respondent’s claim that petitioner’s expectation of receiving Railroad Retirement Act benefits was community property. The court reasoned that, because federal pension programs may be terminated by Congress at any time, petitioner had no enforceable contract right. Respondent contended that the state court, under the decision in In re Milhan, 13 Cal. 3d 129, 528 P. 2d 1145 (1974), cert. denied, 421 U. S. 976 (1975), could determine the expected value of her interest and award her a compensating amount of other property available for distribution. The court held, however, that such a remedy would be contrary to § 231m, which provides that *580benefits are not to be “anticipated,” and would frustrate the explicit and detailed terms of the Act that grant the employee a benefit separate and distinct from the nonemployee spouse’s benefit that terminates upon absolute divorce. See also In re Nizenkoff, 65 Cal. App. 3d 136, 135 Cal. Rptr. 189 (1st Dist. 1976) (expectation of receiving benefits under the Social Security Act); In re Kelley, 64 Cal. App. 3d 82, 134 Cal. Rptr. 259 (2d Dist. 1976) (the same).
Review was granted by the Supreme Court of California. Respondent there argued that “there is absolutely no evidence that Congress ever intended to prevent a community property state from recognizing a spouse’s community interest in a Railroad Retirement Act retirement plan.”13 In a unanimous opinion that court reversed the Court of Appeal. In re Hisquierdo, 19 Cal. 3d 613, 566 P. 2d 224 (1977). Relying on its recent case law,14 the Supreme Court of California held that because the benefits would flow in part from petitioner’s employment during marriage, they were community property even though under federal law petitioner had no enforceable contract right. Congress’ decision to terminate benefits for divorced spouses, the court believed, was evidence that Congress intended to rely on traditional state-law doctrines to protect them. The court rejected petitioner’s contention that § 231m barred respondent’s claim. The court reasoned that it was intended to bar creditors, and respondent was not a creditor but a present owner. The then very recent 1977 amendment to the Social Security Act (mentioned above as the new *581§ 462 (c) of that Act) was not discussed. The question of remedy was left open for decision on remand. The court indicated that by awarding respondent compensating property under the doctrine of In re Milhan, supra, a court could avoid any infringement on the Act’s designation of petitioner as the “individual” recipient.
We granted certiorari to consider whether, under the standard of this Court’s decided Supremacy Clause cases, the award to respondent impermissibly conflicts with the Railroad Retirement Act.15 435 U. S. 994 (1978).
Ill
Insofar as marriage is within temporal control, the States lay on the guiding hand. “The whole subject of the domestic relations of husband and wife, parent and child, belongs to the laws of the States and not to the laws of the United States.” In re Burrus, 136 U. S. 586, 593-594 (1890). Federal courts repeatedly have declined to assert jurisdiction over divorces that presented no federal question. See, e. g., Ohio ex rel. Popovici v. Agler, 280 U. S. 379 (1930). On the rare occasion when state family law has come into conflict with a federal statute, this Court has limited review under the Supremacy Clause to a determination whether Congress has “positively required by direct enactment” that state law be pre-empted. Wetmore v. Markoe, 196 U. S. 68, 77 (1904). A mere conflict in words is not sufficient. State family and family-property law must do “major damage” to “clear and substantial” federal interests before the Supremacy Clause will demand that state law be overridden. United States v. Yazell, 382 U. S. 341, 352 (1966).
*582Nevertheless, on at least four prior occasions this Court has found it necessary to forestall such an injury to federal rights by state law based on community property concepts. In McGune v. Essig, 199 U. S. 382 (1905), federal homestead law, which permitted a widow to patent federal land that had been entered by her husband, prevailed over a daughter’s asserted inheritance of her father’s expectancy that the patent would issue to him. And in a trilogy of cases, the Court held that the survivorship rules in federal savings bond and military life insurance programs override community property law, absent fraud or breach of trust by the decedent. Yiatchos v. Yiatchos, 376 U. S. 306, 309 (1964); Free v. Bland, 369 U. S. 663 (1962); Wissner v. Wissner, 338 U. S. 655 (1950).
This case, like those four, has to do with a conflict between federal and state rules for the allocation of a federal entitlement. The manipulation problem that concerned the Court in Yiatchos v. Yiatchos and Free v. Bland, however, cases in which savings bonds were purchased with community property, is not present here. Railroad Retirement Act benefits from their very inception have federal overtones. Compulsory federal taxes finance them and not just the taxes that fall on the employee. The benefits more closely parallel the land homesteaded in McCune v. Essig. Because the United States owned the land, title to it could not pass in a manner contrary to federal law, 199 U. S., at 390, even though a matter of that kind normally is left to the States. Here, California must defer to the federal statutory scheme for allocating Railroad Retirement Act benefits insofar as the terms of federal law require. The critical terms here include a specified beneficiary protected by a flat prohibition against attachment and anticipation. In Wissner v. Wissner, supra, the Court interpreted a somewhat similar provision16 to pre-*583elude a division for community property purposes, 338 U. S., at 659-660, even though. Congress had not spoken with the specificity that characterizes the Social Security Act amendments that inform our decision here.
The approach must be practical. The federal nature of the benefits does not by itself proscribe the entire field of state control. Petitioner contends, as the California Court of Appeal held, that the States may not create rights to these benefits that do not exist under federal law. Petitioner accordingly says that, because not even petitioner “owns” benefits until Congress has determined that they be paid, the Supreme Court of California erred in describing respondent as a present owner of an expectancy in those benefits. Such rights in the abstract, however, do not necessarily cause the injury to federal law that the Supremacy Clause forbids. The pertinent questions are whether the right as asserted conflicts with the express terms of federal law and whether its consequences sufficiently injure the objectives of the federal program to require nonrecognition.
A
The first way in which respondent seeks to vindicate her community property interest, one particularly pressed at oral argument, Tr. of Oral Arg. 32, 44, is that the Superior Court would retain jurisdiction and order petitioner to pay her an appropriate portion of his benefit, or its monetary equivalent, as petitioner receives it. See In re Brown, 15 Cal. 3d 838, 848-850, 544 P. 2d 561, 567-568 (1976). That course, however, runs contrary to the language and purpose of § 231m and would mechanically deprive petitioner of a portion of the benefit Congress, in § 231d (c)(3), indicated was designed for him alone.
Section 231m plays a most important role in the statu*584tory scheme. Like anti-attachment provisions generally, see Philpott v. Essex County Welfare Board, 409 U. S. 413 (1973); Wissner v. Wissner, supra, it ensures that the benefits actually reach the beneficiary. It pre-empts all state law that stands in its way. It protects the benefits from legal process [notwithstanding any other law ... of any State.” Even state tax-collection laws must bow to its command, for Congress added that phrase in an amendment designed in part to ensure that neither federal nor state tax collectors would encroach on the distribution of benefits.17 It prevents the vagaries of state law from disrupting the national scheme, and guarantees a national uniformity that enhances the effectiveness of congressional policy.
Congress carefully targeted the benefits created by the Railroad Retirement Act. It even embodied a community concept to an extent. The Act provides a benefit for a spouse, but the spouse need not have worked for a carrier. The spouse’s sole contribution is to the marital community that supports the employee who has made railroad employment a career. Congress purposefully abandoned that theory, however, in allocating benefits upon absolute divorce. In direct language the spouse is cut off:
“The entitlement of a spouse of an individual to an annuity . . . shall end on the last day of the month pre*585ceding the month in which . . . the spouse and the individual are absolutely divorced.” 45 U. S. C. § 231d (c)(3).
The choice was deliberate. When the Act was revised in 1974, a proposal was made to award a divorced spouse a benefit like that available to a divorced spouse under the Social Security Act. The labor-management negotiation committee, however, rejected that proposal, and Congress ratified its decision. It based its conclusion on the perilous financial state of the Railroad Retirement Account, and the need to devote funds to other purposes.18
Congress has made a choice, and § 231m protects it. It is for Congress to decide how these finite funds are to be allocated. The statutory balance is delicate. Congress has fixed an amount thought appropriate to support an employee’s old age and to encourage the employee to retire. Any automatic diminution of that amount frustrates the congressional objective. By reducing benefits received, it discourages the divorced employee from retiring. And it provides the employee with an incentive to keep working, because the former spouse has no community property claim to salary earned after the marital community is dissolved. Section 231m shields the distribution of benefits from state decisions that would actually reverse the flow of incentives Congress originally intended.
Respondent contends that this interpretation of the Act is manifestly unjust, and could not have been intended by *586Congress. She suggests that her contribution to the marital community merits recompense, and she argues that, as a logical matter, Congress would not have terminated the spouse’s benefit upon absolute divorce if it had thought that a divorced spouse would be totally unable to assert a state-law claim against the benefits received by the employee spouse. She urges that, at least with respect to spousal claims, the Court should hold that § 231m does no more than restate the Government’s sovereign immunity from burdensome garnishment suits, and so has no effect on her right to require petitioner to reimburse her as he receives benefits. She notes that several courts have adopted this construction in holding that an errant spouse could be forced to pay child and spousal support upon receipt of Railroad Retirement Act payments.19
We, however, cannot so lightly discard the settled view that anti-assignment statutes have substantive meaning. Section 231m goes far beyond garnishment. It states that the annuity shall not be subject to any “legal process under any circumstances whatsoever, nor shall the payment thereof be anticipated.” Its terms make no exception for a spouse. The judicial construction on which respondent relies is a child of equity, not of law. In Wissner, the Court held that a similar line of authority did not apply to community property claims:
“Venerable and worthy as this community is, it is not, we think, as likely to justify an exception to the congressional language as specific judicial recognition of particular *587needs, in the alimony and support eases.” 338 TJ. S., at 660.
Now Congress has written into law the same distinction Wissner drew as a matter of policy. The 1977 amendments to the Social Security Act, by way of amending the existing § 459 and adding a new § 462, expressly override § 231m, and even facilitate garnishment for claims based on spousal support. They decline to do so, however, for community property claims. The legislative history is sparse and does not mention Wissner.20 We know, however, that the purpose of § 459 was to help children and divorced spouses get off welfare. It is therefore logical to conclude that Congress, in adopting § 462 (c), thought that a family’s need for support could justify garnishment, even though it deflected other federal benefit programs from their intended goals, but that community property claims, which are not based on need, could not do so.
*588B
Respondent contends that she can vindicate her interest and leave the benefit scheme intact by pursuing her remedy under In re Milhan, 13 Cal. App. 3d 129, 528 P. 2d 1145 (1974). She seeks an offsetting award of presently available community property to compensate her for her interest in petitioner’s expected benefits. As petitioner’s counsel bluntly put it, respondent wants the house. Tr. of Oral Arg. 5. The expected value of the benefits is such that she could get it if this remedy were adopted.
An offsetting award, however, would upset the statutory balance and impair petitioner’s economic security just as surely as would a regular deduction from his benefit check. The harm might well be greater. Section 231m provides that payments are not to be “anticipated.” Legislative history throws little light on the meaning of this word.121 In the law of trusts, however, a prohibition against anticipation is commonly understood to mean that “the interest of a sole beneficiary shall not be paid to him before a certain date.” E. Griswold, Spendthrift Trusts § 512, p. 583 (2d ed. 1947).22 The *589Railroad Retirement Act resembles a trust in certain respects. If that definition is applied here, then the offsetting award respondent seeks would improperly anticipate payment by allowing her to receive her interest before .the date Congress has set for any interest to accrue.
Any such anticipation threatens harm to the employee, and corresponding frustration to federal policy, over and above the mere loss of wealth caused by the offset. If, for example, a nonemployee spouse receives offsetting property, and then the employee spouse dies before collecting any benefits, the employee's heirs or beneficiaries suffer to the extent that the offset exceeds the lump-sum death benefits the Act provides. See 45 U. S. C. § 231e. Similarly, if the employee leaves the industry before retirement, and so fails to meet the “current connection with the railroad industry" requirement for certain supplemental benefits, see 45 U. S. C. § 231a (b)(1) (iv), the employee never will fully regain the amount of the offset. A third possibility, of course, is that Congress might alter the terms of the Act. In 1974, Congress eliminated certain double benefits accruing after 1982.23 If past California property settlements had been based on those benefits, then the change in the Act would have worked a multiple penalty on future recipients. By barring lump-sum community property settlements based on mere expectations, the prohibition against anticipation prevents such an obvious frustration of congressional purpose. It also preserves congressional freedom to amend the Act, and so serves much the same function as the frequently stated understanding that programs of this nature' convey no future rights and so may be changed without *590taking property in violation of the Fifth Amendment. See Richardson v. Belcher, 404 U. S. 78, 80-81 (1971); Flemming v. Nestor, 363 U. S. 603, 608-611 (1960); Ruhl v. Railroad Retirement Board, 342 F. 2d 662, 666 (CA7), cert. denied, 382 U. S. 836 (1965).
IV
We are mindful that retirement benefits are increasingly important in American life and that divorce is becoming more frequent. The burden of marital dissolution may be particularly onerous for a spouse who, unlike respondent, has no expectation of receiving his or her own social security benefits. The 1975 and 1977 amendments, however, both permit and encourage garnishment of Railroad Retirement Act benefits for the purposes of spousal support, and those benefits will be claimed by those who are in need. Congress may find that the distinction it has drawn is undesirable. Indeed, Congress recently has passed special legislation to allow garnishment of Civil Service Retirement benefits for community property purposes. See Pub. L. 95-366, 92 Stat. 600.
For the present, however, the community property interest that respondent seeks conflicts with § 231m, promises to diminish that portion of the benefit Congress has said should go to the retired worker alone,24 and threatens to penalize one whom Congress has sought to protect. It thus causes the kind of injury to federal interests that the Supremacy Clause forbids. It is not the province of state courts to strike a balance different from the one Congress has struck.
*591The judgment of the Supreme Court of California is reversed, and the case is remanded for further proceedings not inconsistent with this opinion.
It is so ordered.
R. Rep. No. 1711, 74th Cong., 1st Sess., 10 (1935).
Railroad Retirement Tax Act, 26 U. S. C. §§ 3201-3233.
This Court ruled that the Railroad Retirement Act of 1934 was unconstitutional and did so on the ground that it took property in violation of the Fifth Amendment and exceeded Congress’ power under the Interstate Commerce Clause. Railroad Retirement Board v. Alton R. Co., 295 U. S. 330 (1935). Congress then promptly enacted substantially similar legislation in 1935 based on its power to tax and spend to promote the general welfare. 49 Stat. 967 and 974. The operation of that legislation was enjoined. Alton R. Co. v. Railroad Retirement Board, 16 F. Supp. 955 (DC 1936). After Presidential intervention and extensive negotiation, a bill was produced that became the Railroad Retirement Act of 1937. 50 Stat. 307. That Act was amended several times to make it conform more closely to the existing Social Security Act. In 1970 Congress established a Commission on Railroad Retirement to study the actuarial soundness of the system. The Commission submitted a report, The Railroad Retirement System: Its Coming Crisis, H. R. Doc. No. 92-350 (1972). Further industry negotiation produced the bill that became the 1974 Act. See id., at 55-75; Hearing on Women and Railroad Retirement before the Subcommittee on Retirement Income and Employment of the Select House Committee on Aging, 94th Cong., 1st Sess. (1976) (Hearing on Women and Railroad Retirement).
See H. R. Doc. No. 92-350 (1972); Skolnik, Restructuring the Railroad Retirement System, 38 Soc. Sec. Bull., No. 4, p. 23 (1975).
“The entitlement of a spouse of an individual to an annuity under section 231a (c) of this title shall end on the last day of the month preceding the month in which . . . the spouse and the individual are absolutely divorced . .. .”
The Social Security Act specifically provides: “The right to alter, amend, or repeal any provision óf this [Act] is reserved to the Congress.” 49 Stat. 648, 42 U. S. C. § 1304. While the Railroad Retirement Act does not expressly incorporate that very language, it definitely does so indirectly, because the minimum Railroad Retirement Act benefit is the benefit that would have been received under the Social Security Act. See 45 U. S. C. § 231b (a)(1).
The goal of this provision, in the words of a union negotiator who testified, was “to make it sure that the annuitant gets the pension.” Hearings on S. 2395 before the Senate Committee on Interstate Commerce, 75th Cong., 1st Sess., 29 (1937) (statement of George M. Harrison, president of the Brotherhood of Railway Clerks).
The consent provision reads in its entirety:
“Notwithstanding any other provision of law, effective January 1, 1975, moneys (the entitlement to which is based upon remuneration for employment) due from, or payable by, the United States (including any agency or instrumentality thereof and any wholly owned Federal corporation) to an individual, including members of the armed services, shall be subject, in like manner and to the same extent as if the United States were a private person, to legal process brought for the enforcement, against such individual of his legal obligations to provide child support or make alimony payments.”
The entire definition reads:
“The term 'alimony/ when used in reference to the legal obligations of an individual to provide the same, means periodic payments of funds for the support and maintenance of the spouse (or former spouse) of such individual, and (subject to and in accordance with State law) includes but is not limited to, separate maintenance, alimony pendente lite, maintenance, and spousal support; such term also includes attorney’s fees, interest, and court costs when and to the extent that the same are expressly made recoverable as such pursuant to a decree, order, or judgment issued in accordance with applicable State law by a court of competent jurisdiction. Such term does not include any payment or transfer of property or its value by an individual to his spouse or former spouse in compliance with any community property settlement, equitable distribution of property, or other division of property between spouses or former spouses.”
See also Cal. Civ. Code Ann. § 4800 (West Supp. 1978); W. deFuniak & M. Vaughn, Principles of Community Property § 1 (2d ed. 1971).
Ibid. Only a small minority of common-law States still adhere strictly to the view that title alone controls the distribution of property on divorce. Foster & Freed, From a Survey of Matrimonial Laws in the United States: Distribution of Property Upon Dissolution, 3 Comm. Prop. J. 231, 232 (1976).
Reporter’s transcript on appeal in No. D 860954 (Super. Ct. Los Angeles) 23; Tr. of Oral Arg. 32.
Petition for Hearing in No. LA 30712 (Cal. Sup. Ct.), p. 14.
In re Fithian, 10 Cal. 3d 592, 517 P. 2d 449, cert. denied, 419 U. S. 825 (1974) (federal military retirement pay); cf. In re Brown, 15 Cal. 3d 838, 544 P. 2d 561 (1976) (nonvested interest in a private employer’s retirement plan); see generally Martin, Social Security Benefits for Spouses, 63 Cornell L. Rev. 789, 830-836 (1978); Reppy, Community and Separate Interests in Pensions and Social Security Benefits after Marriage of Brown and ERISA, 25 UCLA L. Rev. 417-421, 429-443, 483-511 (1978) (discussing cases) (hereinafter Interests in Pensions).
Texas courts have divided on the question whether an expectation of receiving Railroad Retirement Act benefits is community property. Compare Allen v. Allen, 363 S. W. 2d 312 (Tex. Civ. App., Houston, 1962) with Eichelberger v. Eichelberger, 557 S. W. 2d 587 (Tex. Civ. App., Waco, 1977) (writ dismissed).
The statute provided that payments to the named beneficiary “shall be exempt from the claims of creditors, and shall not be liable to attachment, levy; or seizure by or under any legal or equitable process whatever, *583either before or after receipt by the beneficiary.” 49 Stat. 609, 38 U. S. C. § 454a (1946 ed.).
Senator John F. Kennedy described the amendment on the floor of the Senate:
“[The amendment] makes it clear that railroad retirement and unemployment benefits are still exempt from Federal or State taxation, garnishment and attachment, a clarification made necessary by an inadvertent oversight in last year’s new tax law and doubts raised in several States.” 101 Cong. Rec. 11772 (1955).
See S. Rep. No. 1040, 84th Cong., 1st Sess., 9-10 (1955); Hearing on S. 1589 before the Subcommittee on Railroad Retirement of the Senate Committee on Labor and Public Welfare, 84th Cong., 1st Sess., 29-30 (1955) (remarks of Lester P. Schoene, representing all standard railway labor organizations). See also Rev. Rui. 70-343, 1970-2 Cum. Bull. 4.
Hearing on Women and Railroad Retirement 5. The 1972 Report of the Commission on Railroad Retirement said that industry employment, 1.68 million during World War II, had fallen to 582,000 by the first quarter of 1972. The system’s beneficiaries already outnumbered the employees who were contributing. The Commission said that, without the changes that it suggested and that Congress embodied in the 1974 Act, the system’s funds would be consumed by 1988. H. R. Doc. No. 92-350, pp. 10, 12, 18 (1972).
See LaFarr v. LaFarr, 132 Vt. 191, 315 A. 2d 235 (1974); Heuchan v. Heuchan, 38 Wash. 2d 207, 228 P. 2d 470 (1951); Commonwealth v. Berfield, 160 Pa. Super. 438, 51 A. 2d 523 (1947). (Before the 1974 revision of the Act, the § 231m exemption was codified as § 228i. See 45 U. S. C. § 2281 (1970 ed.).)
The dissenting opinion, post, at 598-600, argues that § 231m is irrelevant because respondent is a co-owner. Surely, however, inability to use any “legal process under any circumstances whatsoever” to enforce her asserted rights is a severe limitation on the nature of any ownership interest she might otherwise enjoy under state law.
Section 459, added to the Social Security Act in 1975, overrides § 231m for “alimony” claims. It was part of a package of measures primarily designed to combat increases in welfare payments resulting from an inability to compel payment of support obligations from solvent but unwilling parents. S. Rep. No. 93-1356, pp. 42-43 (1974). After the section’s adoption, courts disagreed on whether the alimony that could be made the subject of garnishment included community property. Compare United States v. Stelter, 553 S. W. 2d 227, 229 (Tex. Civ. App. 1977), rev’d, 567 S. W. 2d 797 (Tex. 1978); Williams v. Williams, 338 So. 2d 869 (Fla. App. 1976), with Marin v. Hatfield, 546 F. 2d 1230 (CA5 1977); Kelley v. Kelley, 425 F. Supp. 181, 183 (WD La. 1977). In 1977, Congress added § 462 (c) and resolved that question. The amendment was the subject of a prior Committee Report, S. Rep. No. 94^1350 (1976). Senator Nunn said that its purpose was to clarify prior law. Neither he nor the Committee explained why property divisions were excluded. See 123 Cong. Rec. 12909-12914, 12958-12959 (1977). Companion measures both established procedures to make garnishment more efficient, and amended § 303 of the Consumer Credit Protection Act, 15 U. S. C. § 1673 (b), to pre-empt state law by limiting garnishments to less than 65% of the remuneration received for employment, including retirement benefits. Pub. L. 95-30, Tit. V., § 501 (e) (2), 91 Stat. 161.
The original statute, enacted in 1934, contained a prohibition against attachment but not the phrase “nor shah the payment thereof be anticipated.” Act of June 27, 1934, ch. 868, § 11, 48 Stat. 1288. The quoted phrase was added without explanation in 1935 and carried over in each later re-enactment of the statute. Act of Aug. 29, 1935, ch. 812, § 10, 49 Stat. 973; Act of June 24, 1937, ch. 382, § 12, 50 Stat. 316; Act of Oct. 16, 1974, Pub. L. 93-445, § 14, 88 Stat. 1345. The Committee Reports attach no special meaning to it. See, e. g., H. R. Rep. No. 1711, 74th Cong., 1st Sess., 12 (1935). It was mentioned during the hearings, but not discussed. See Hearing on H. R. 6956 before the House Committee on Interstate and Foreign Commerce, 75th Cong., 1st Sess., 69 (1937); Hearings on S. 3151 before a Subcommittee of the Senate Committee on Interstate Commerce, 74th Cong., 1st Sess., 16 (1935). Congress has employed an identical phrase in the Railroad Unemployment Insurance Act, 52 Stat. 1096, as amended, 45 U. S. C. § 352 (e).
In Hetrick v. Reading Co., 39 F. Supp. 22 (NJ 1941), the prohibition against anticipation was applied in this sense. The court held that a *589defendant employer could not offset a tort claim by the amount the plaintiff expected to receive in Railroad Retirement Act disability benefits.
See 45 U. S. C. § 231b (f) (2); S. Rep. No. 93-1163 (1974); H. R. Rep. No. 93-1345 (1974). For a similar catalog of uncertainties surrounding the payment of future social security benefits, see Interests in Pensions 529-533.
In this case, Congress has granted a separate spouse’s benefit, and has terminated that benefit upon absolute divorce. Different considerations might well apply where Congress has remained silent on the subject of benefits for spouses, particularly when the pension program is a private one which federal law merely regulates. See Employee Retirement Income Security Act of 1974, 88 Stat. 829, 29 U. S. C. § 1001 et seq. Our holding intimates no view concerning the application of community property principles to benefits payable under programs that possess these distinctive characteristics.