Robert Young, a Washington state prisoner, filed a complaint for damages pursuant to 42 U.S.C. § 1983 (1982), claiming that state officials had unconstitutionally failed to apply good-time credits to his prison sentence. The district court dismissed his complaint; we modify the district court’s order to stay rather than dismiss the claim.

1. Where a state prisoner challenges the fact or duration of his confinement, his sole federal remedy is a writ of habeas corpus. Preiser v. Rodriguez, 411 U.S. 475, 489-90, 500 , 93 S.Ct. 1827, 1836, 1841 , 36 L.Ed.2d 439 (1973). This is largely because, while a habeas petitioner must exhaust state remedies, Rose v. Lundy, 455 U.S. 509, 515 , 102 S.Ct. 1198, 1201 , 71 L.Ed.2d 379 (1982), a section 1983 plaintiff need not. Ellis v. Dyson, 421 U.S. 426, 432-33 , 95 S.Ct. 1691, 1695 , 44 L.Ed.2d 274 (1975). If habeas were not the exclusive federal method for challenging the length of a state prison sentence, the exhaustion requirement could be easily circumvented: A prevailing section 1983 plaintiff would obtain a federal court’s ruling that his sentence is too long, a judgment that would preclude relitigation of the issue in a subsequent state habeas proceeding. Preiser, 411 U.S. at 489-90 , 93 S.Ct. at 1836 .

This would be true even if, as here, the prisoner does not specifically request the reduction of his sentence in the section 1983 complaint. Before a district court could award damages to Young, it would have to determine that his good-time credits were unconstitutionally withheld. Young would then be able to mount a successful collateral attack on his sentence in state court. The purpose of the exhaustion requirement — to give the state courts the first opportunity to rule on the claims of state prisoners — would accordingly be frustrated. As a result, habeas must be the exclusive federal remedy not just when a state prisoner requests the invalidation or reduction of his sentence, but whenever the requested relief requires as its predicate a determination that a sentence currently being served is invalid or unconstitutionally long.

All nine federal circuit courts to consider this question have arrived at the same conclusion. See Guerro v. Mulhearn, 498 F.2d 1249, 1251-55 (1st Cir.1974) (request for money damages barred where resolution would require determination that state conviction was invalid); Mack v. Varelas, 835 F.2d 995, 998 (2d Cir.1987) (section 1983 action proper where success would not lead to more speedy release); Brown v. Fauver, 819 F.2d 395 , 397-99 (3d Cir.1987) (restoration of good-time credits obtainable only via writ of habeas corpus where sentence still being served); Todd v. Baskerville, 712 F.2d 70 , 72-73 (4th Cir.1983) (same); Richardson v. Fleming, 651 F.2d 366, 373 (5th Cir. Unit A 1981) (“any § 1983 action which draws into question the validity of the fact or length of confinement must be preceded by exhausting state remedies,” regardless of the relief sought); Hadley v. Werner, 753 F.2d 514, 516 (6th Cir.1985) (per curiam) (federal court must “ ‘stay its hand where disposition of the damage action would involve a ruling implying that a state conviction is or would be illegal’ ”) (quoting Guerro, 498 F.2d at 1252 ); Hanson v. Heckel, 791 F.2d 93, 94-97 (7th Cir.1986) (per curiam) (claim of unconstitutional deprivation of good-time credits sounds exclusively in habeas where sentence still being served, despite fact that complaint sought damages but not restoration of credits); Offet v. Solem, 823 F.2d 1256, 1258-61 (8th Cir.1987) (federal court must stay section 1983 action for deprivation of good-time credits until plaintiff has exhausted state remedies); Gwin v. Snow, 870 F.2d 616, 626-27 (11th Cir.1989) (section 1983 claim must be treated as habeas petition if relief requested would “undermine” conviction).

Such a rule is not inconsistent with our prior decisions, which have never expressly addressed the question, but point in the same general direction. See Toussaint v. McCarthy, 801 F.2d 1080, 1102-03 (9th Cir.1986) (habeas not exclusive remedy where prisoners seek only to be moved from one location to another within a prison), cert. denied, 481 U.S. 1069 , 107 S.Ct. 2462 , 95 L.Ed.2d 871 (1987); Ybarra v. Reno Thun derbird Mobile Home Village, 723 F.2d 675 , 682 (9th Cir.1984) (federal court may not rule on prisoner’s section 1983 claim where “[although he does not specifically request release, the finding of such declaratory relief in his favor would show that release was required”); Clutchette v. Procunier, 497 F.2d 809, 812-14 (9th Cir.1974) (prisoner may bring section 1983 action to challenge disciplinary procedures having only “speculative and incidental effect” on length of sentence without first exhausting state remedies), modified, 510 F.2d 613 (9th Cir.1975), rev’d on different grounds sub nom. Baxter v. Palmigiano, 425 U.S. 308 , 96 S.Ct. 1551 , 47 L.Ed.2d 810 (1976). See also Bergen v. Spaulding, 881 F.2d 719, 722 (9th Cir.1989) (permitting section 1983 suit for deprivation of good-time credits to proceed where plaintiff no longer serving prison sentence). We become the tenth circuit court to adopt it.

2. Although we join our sister circuits, we share a concern expressed by many of them. In Wolff v. McDonnell, 418 U.S. 539 , 94 S.Ct. 2963 , 41 L.Ed.2d 935 (1974), the Supreme Court observed:

Id. at 554-55 , 94 S.Ct. at 2974 (citation and 'footnote omitted). We are acutely aware that this language appears to conflict with the rule we have just adopted; this passage from Wolff may suggest that the exclusivity of habeas turns on the type of relief requested by the plaintiff. We are not the first court to worry about this problem: Many of the decisions cited above discuss Wolff at length and attempt to distinguish it, none very persuasively. See, e.g., Offet, 823 F.2d at 1259-61 ; Todd, 712 F.2d at 72-73; Hanson, 791 F.2d at 95-96 . While we, too, are unable to come up with a principled way of distinguishing Wolff , we agree with Judge Bowman, writing for the Eighth Circuit, that “to read Wolff as allowing a state prisoner to avoid the exhaustion requirement by artful pleading is to set Wolff at odds with the rationale of Preiser , and we do not believe that the Court intended such a result.” Offet, 823 F.2d at 1260 .

We would nevertheless feel bound to follow Wolff , and thereby create a conflict with nine of our sister circuits, were it not for a brief excursion made by the Supreme Court at the end of its opinion in Tower v. Glover, 467 U.S. 914 , 104 S.Ct. 2820 , 81 L.Ed.2d 758 (1984). Even though the issue we consider today was not presented in Tower , the Court went out of its way to note: “We ... have no occasion to decide if a Federal District Court should abstain from deciding a § 1983 suit for damages stemming from an unlawful conviction pending the collateral exhaustion of state-court attacks on the conviction itself.” Id. at 923, 104 S.Ct. at 2826 . Although this statement is dictum, we take it seriously: Because the statement would make no sense if Wolff had resolved the question we face today, we presume that the Tower majority deliberately included it in its opinion to signal that the Court deems itself not to have ruled on our issue. Thus, while Wolff on its face appears to foreclose the decision we reach, the Court evidently does not view it that way. This is fortunate, as it spares us the necessity of creating an inter-circuit conflict on a fundamental and recurring issue.

3. Because Young is still in prison, a federal court judgment that his good-time credits have been improperly withheld could be used in a subsequent state proceeding to compel reduction of his remaining time in prison, foreclosing the Washington state courts from considering the issue. Young can therefore proceed in federal court solely by petitioning for a writ of habeas corpus. As he has not yet exhausted state remedies, such a petition would be premature.

The district court, following this line of reasoning, dismissed Young’s complaint. Dismissal, however, could be an unnecessarily harsh method of resolving the tension between section 1983 and the habeas exhaustion requirement. Exhaustion of state remedies is a process that may take years to complete; it is not farfetched to contemplate that a prisoner may be unable to exhaust state remedies before the limitations period expires on his section 1983 claim. Accordingly, district courts in some circuits stay, rather than dismiss, section 1983 complaints in this posture. See, e.g., Mack, 835 F.2d at 999-1000 ; Richardson, 651 F.2d at 373 ; Offet, 823 F.2d at 1261 . This is a wise policy; it would hardly promote the goals of the Civil Rights Act of 1871 to twice deny prisoners a federal forum for section 1983 complaints, once for being too early and again for being too late.

We therefore vacate the district court’s order dismissing Young’s complaint. The court shall, instead, stay federal proceedings so that Young may have an opportunity to pursue state remedies. Young may proceed further in the district court only after he has exhausted those remedies or is no longer serving a prison sentence capable of being reduced by the application of good-time credits.

. Where a prisoner wishes to challenge the conditions of his confinement, by contrast, a section 1983 action is a proper avenue of redress; a writ of habeas corpus may be proper as well. Preiser, 411 U.S. at 499-500 , 93 S.Ct. at 1841 . . Justice Brennan, joined by Justices Marshall, Blackmun and Stevens, complained about this: Although the issue was never raised by the parties, and although, as the Court properly concedes, the issue has absolutely no bearing on the disposition of this case, the Court nevertheless has seen fit to observe that it "ha[s] no occasion to decide” whether federal courts should "abstain” from deciding a state prisoner’s § 1983 suit for damages stemming from an unlawful conviction pending that prisoner’s exhaustion of collateral state-court challenges to his conviction. The reasons why the Court has no "occasion” to decide this question are clear enough: The question was never pressed or passed upon below, never briefed or argued in this Court, and, because respondent Glover has already exhausted all state-court remedies, the issue has no bearing whatsoever on the proper resolution of the controversy we have been called upon to decide. 467 U.S. at 924 , 104 S.Ct. at 2827 (Brennan, J., concurring) (citation omitted). The four concurring justices joined all of Tower except the paragraph discussing the issue raised in this case. . Young claims for the first time in his reply brief that restoration of his good time credits will not reduce the sentence he is currently serving. Appellant’s Reply Brief at 2. As he did not make this claim before the district court (or in his opening brief in this court), its truth has never been ascertained. On remand, the district court shall determine whether restoration of Young's good-time credits could result in his speedier release. If not, habeas would no longer be his exclusive federal remedy, see Preiser, 411 U.S. at 500 , 93 S.Ct. at 1841 , and he could therefore proceed in federal court under section 1983.