Plaintiff-appellant Eric Jenkins, formerly an inmate in the custody of the New York State Department of Correctional Services (“DOCS”), appeals from the judgment of the United States District Court for the Southern District of New York (Mukasey, J.) dismissing his 42 U.S.C. § 1983 action. In that action, Jenkins alleged that defendant-appellee Lieutenant Michael Haubert, an employee of DOCS, violated his constitutional right to procedural due process in the course of presiding over two separate disciplinary hearings.
Jenkins claimed that at the first hearing, on July 26, 1994, Haubert improperly denied his request to call four witnesses. At the hearing’s conclusion, Haubert found Jenkins guilty and sentenced him to thirty
*21
days in keeplock, “a form of administrative segregation in which the inmate is confined to his cell, deprived of participation in normal prison routine, and denied contact with other inmates.”
Gittens v. LeFevre,
Jenkin’s Article 78 claim was pending when the second disciplinary hearing began on November 23, 1994. Jenkins requested a different hearing officer on the ground that Haubert would be biased against him on account of Jenkin’s Article 78 proceeding, which named Haubert as a defendant. Haubert denied that request, found Jenkins guilty of the new charges, and again sentenced him to thirty days in keeplock. Jenkins unsuccessfully appealed this sentence to the prison superintendent, but did not file an Article 78 proceeding to challenge it. On November 28, 1994, the New York Supreme Court dismissed Jen-kin’s Article 78 claim. On July 21, 1995, Jenkins filed this § 1983 action in the district court.
In two separate opinions, the district court dismissed Jenkin’s claims. In the first, the district court held that Jenkins was collaterally estopped from relitigating the claims arising out of the first disciplinary hearing on account of the state supreme court’s dismissal of his Article 78 proceeding.
See Jenkins v. Haubert,
No. 95 Civ. 5453,
DISCUSSION
We review the district court’s dismissal of the complaint
de novo, see Jaghory v. New York State Dep’t of Educ.,
The sole issue in this appeal is whether Heck and Edwards bar a § 1983 claim on facts such as these, where a prisoner (or former prisoner) alleges a constitutional violation arising out of the imposition of intra-prison disciplinary' sanctions that have no effect on the duration of the prisoner’s overall confinement. This is an open question in our circuit. We now hold that Heck and Edwards do not bar a § 1983 claim challenging the conditions of a prisoner’s confinement where the prisoner is unable to challenge the conditions through a petition for federal habeas corpus. Accordingly, the district court incorrectly determined that Jenkin’s § 1983 claim was not cognizable. We also hold, however, that the defendant in such an action may assert one or more affirmative defenses that can result in the dismissal of the plaintiffs claim. We therefore remand this case to give Haubert the opportunity to assert the availability of such defenses.
I. The Statutory Framework
As was true in
Heck v. Humphrey,
“[t]his case lies at the intersection of the two most fertile sources of federal-court prisoner litigation — the Civil Rights Act of 1871, Rev. Stat. § 1979, as amended, 42 U.S.C. § 1983, and the federal habeas corpus statute, 28 U.S.C. § 2254.”
*22 A. Section 1983
Section 1983, the vehicle most often used by prisoners challenging the conditions of their confinement, provides:
Every person who, under color of any statute, ordinance, regulation, custom, or usage, of any State or Territory or the District of Columbia, subjects, or causes to be subjected, any citizen of the United States or other person within the jurisdiction thereof to the deprivation of any rights, privileges, or immunities secured by the Constitution and laws, shall be liable, to the party injured in any action at law, suit in equity, or other proper proceeding for redress.
42 U.S.C. § 1983. Section 1983, by its own terms, contains no requirement that state judicial remedies be exhausted.
The precursor of § 1983, § 1 of the Civil Rights Act of 1871, was enacted at a time when “the Federal Government was clearly established as a guarantor of the basic federal rights of individuals against incursions by state power.”
Patsy v. Florida Bd. of Regents,
B. The Habeas Corpus Statute
The federal habeas corpus statute, by contrast, explicitly requires exhaustion of state judicial remedies. Title 28 U.S.C. § 2254 provides in pertinent part:
An application for a writ of habeas corpus on behalf of a person in custody pursuant to the judgment of a State court shall not be granted unless it appears that ... the applicant has exhausted the remedies available in the courts of the State; or there is an absence of available State corrective process; or circumstances exist that render such process ineffective to protect the rights of the applicant.
Id. § 2254(b) (emphasis added).
Thus, under § 2254(b), a prisoner who seeks release from state custody on account of a wrongful conviction must fust exhaust state judicial remedies before filing a habeas petition in district court.
See Preiser v. Rodriguez,
The Supreme Court has held that the exhaustion requirement applies not only to the heart of habeas cases, but also to cases in which a prisoner challenges the validity of administrative action internal to the prison system that affects the fact or length of the prisoner’s confinement.
See id.
at 491-92,
[sjince these internal problems of state prisons involve issues so peculiarly within state authority and expertise, the States have an important interest in not being bypassed in the correction of *23 those problems. Moreover, because most potential litigation involving state prisoners arises on a day-to-day basis, it is most efficiently and properly handled by the state administrative bodies and state courts, which are, for the most part, familiar with the grievances of state prisoners and in a better physical and practical position to deal with those grievances.
Id.
at 492,
However, many intra-prison administrative or disciplinary decisions that could result in deprivations in violation of the Constitution do not affect the fact or length of a prisoner’s confinement. For example, such decisions could result in a prisoner’s placement in solitary confinement or keeplock, as occurred in this case, or some other form of confinement more restrictive than that imposed on the general prison population.
The Supreme Court has left open the question of whether federal habeas corpus is available to prisoners who challenge decisions imposing restrictive conditions of confinement. In
Preiser,
the Court suggested in dictum that habeas corpus might be available in such circumstances.
See Preiser,
C. The Prison Litigation Reform Act
In 1996, Congress enacted the Prison Litigation Reform Act, Pub.L. No. 104-134, 110 Stat. 1321 (1996) (“PLRA”), to amend a variety of statutory provisions governing federal court litigation by prisoners. Under the PLRA, before filing a § 1983 action, a prisoner first must exhaust the administrative procedures available to him. See 42 U.S.C. § 1997e(a). In addition, the PLRA authorizes a court to dismiss a prisoner’s action regarding prison conditions without requiring administrative exhaustion if the claim on its face clearly fails to state a claim upon which relief can be granted, is frivolous or malicious, or seeks monetary relief from a defendant who is immune from suit. See id. § 1997e(c)(2). The PLRA also requires that a prisoner bringing an action for mental or emotional injuries suffered while in custody make a prior showing of physical injury. See id. at 19976(e). 1
II. Supreme Court Precedent
As the foregoing discussion suggests, the question of whether § 1983 or habeas is available to a prisoner “is of considerable practical importance.”
Preiser,
A. Preiser v. Rodriguez
Recognizing the practical reasons why a prisoner might prefer a § 1983 action to a petition for a writ of habeas corpus, the Supreme Court held in
Preiser
that, for those cases at the heart of habeas corpus—those in which a prisoner challenges the fact or length of his confinement—■ habeas is the exclusive federal remedy, at least where the prisoner seeks an injunction affecting the fact or length of his incarceration.
See
B. Heck v. Humphrey
In
Heck v. Humphrey,
The Court held that Heck’s § 1983 damages claim was not cognizable. Acknowledging that
Preiser,
in dictum, suggested that a damages action by a state prisoner could be brought under § 1983 without prior exhaustion of state remedies,
see Heck,
The Court concluded by announcing what we refer to hereinafter as the “Heck rule”:
[I]n order to recover damages for allegedly unconstitutional conviction or imprisonment, or for other harm caused by actions whose unlawfulness would render a conviction or sentence invalid, a § 1983 plaintiff must prove that the conviction or sentence has been reversed on direct appeal, expunged by executive order, declared invalid by a state tribunal authorized to make such determination, or called into question by a federal court’s issuance of a writ of habeas cor-, pus, 28 U.S.C. § 2254.
Id.
at 486-87,
Thus, to comply with the
Heck
rule, a prisoner, as a prerequisite to maintaining
*25
his § 1983 action, must establish that his conviction or sentence has been overturned or invalidated by an administrative board or a state court or a federal court in a habeas proceeding. Or, if the suit is not explicitly directed at an unlawful conviction or sentence, the prisoner must establish that his suit does not “necessarily imply the invalidity of his conviction or sentence.”
Heck,
C. Edwards v. Balisok
Much of the confusion regarding the applicability of the
Heck
rule to intra-prison sanctions stemmed from the Supreme Court’s decision in
Edwards v. Balisok,
In its holding, the
Edwards
Court rejected the prisoner’s distinction between challenges to the procedures used as opposed to the result of the hearing.
See id.
at 644,
D. Spencer v. Kemna
In
Spencer v. Kemna,
The Supreme Court held that the petition was appropriately dismissed as moot because it did not present a case or controversy as required by Article III, § 2 of the Constitution.
See Spencer,
The majority opinion suggested in dictum, however, that § 1983 might be available if Spencer challenged the procedures used by the Board of Parole, rather than its result, and if the alleged procedural defect did not “ ‘necessarily imply the invalidity of the revocation.”
Spencer,
would needlessly place at risk the rights of those outside the intersection of § 1983 and the habeas statute, individuals not “in custody” for habeas purposes. If these individuals (people who were merely fined, for example, or who have completed short terms of imprisonment, probation, or parole, or who discover (through no fault of their own) a constitutional violation after full expiration of their sentences), like state prisoners, were required to show the prior invalidation of their convictions or sentences in order to obtain § 1983 damages for unconstitutional conviction or imprisonment, the result would be to deny any federal forum for claiming a deprivation of federal rights to those who cannot first obtain a favorable state ruling. The reason, of course, is that individuals not “in custody” cannot invoke federal habeas jurisdiction, the only statutory mechanism besides § 1983 by which individuals may sue state officials in federal court for violating federal rights. That would be an untoward result.
Heck,
III. Application
As the foregoing discussion reveals, the Court has never announced that the
Heck
rule bars a prisoner’s challenge under § 1983 to an administrative or disciplinary sanction that does not affect the overall length of his confinement. In
Preiser,
the Court confined its holding that habeas was the prisoner’s exclusive remedy to the revocation of good-time credits. The Court reaffirmed its prior holdings in cases involving challenges to administrative or disciplinary segregation, stating that a § 1983 action “is a proper remedy for a state prisoner who is making a constitutional challenge to the conditions of his prison life, but not to the fact or length of his custody.”
We conclude, therefore, that nothing in Supreme Court precedent requires that the
Heck
rule be applied to a challenge by a prisoner to a term of disciplinary segregation. Moreover, we find that to apply the
Heck
rule in such circumstances would contravene the pronouncement of five justices that some federal remedy—either ha-beas corpus or § 1983—must be available.
See Spencer,
We do not rest our holding solely on our tally of votes on the Court for Justice Souter’s view of Heck. The Court’s decisions before Spencer also support our conclusion that Jenkins is not precluded by Heck and Edivards from bringing his § 1983 suit. Because we find that Jen-kin’s suit is properly characterized as a challenge to the conditions of his confinement, rather than as a challenge to the fact or duration of his confinement, Heck’s favorable termination requirement does not apply.
*28
“Conditions of confinement” is not a term of art; it has a plain meaning. It quite simply encompasses all conditions under which a prisoner is confined for his term of imprisonment. These include terms of disciplinary or administrative segregation such as keeplock or solitary confinement, as well as more general conditions affecting a prisoner’s quality of life such as: the revocation of telephone or mail privileges or the right to purchase items otherwise available to prisoners,
see Preiser,
In
Black v. Coughlin,
Under existing law, a prisoner pursuing a § 1983 claim still faces considerable hurdles before his claim may be heard on the merits. The Supreme Court held in
Sandin v. Conner,
In
Frazier v. Coughlin,
Although there is no bright-line rule regarding the length or type of sanction that would give rise to an “atypical and significant hardship,” this standard will not be met unless the disciplinary and administrative sanctions are onerous.
See Sandin,
A plaintiffs inability to meet the Sandin standard, properly raised by a defendant on a motion to dismiss pursuant to Rule 12(b)(6), Fed.R.Civ.P., is not, however, the sole defense that a defendant may raise to a conditions of confinement claim under § 1983. Because, under the PLRA, a prisoner must exhaust administrative remedies before filing a § 1983 suit and, in the case of suits seeking damages for mental or emotional injuries, make a prior showing of physical injury, a defendant in *29 a prisoner § 1983 suit may also assert as an affirmative defense the plaintiffs failure to comply with the PLRA’s requirements.
Here, the district court did not consider the application of Sandin because it found that Jenkin’s claims were barred under Heck and Edwards. We therefore remand the case to the district court for consideration of whether Jenkins has stated a claim for a deprivation of procedural due process within the requirements of San-din, as well as any other appropriate affirmative defenses.
CONCLUSION
The judgment of the district court is vacated and we remand the case for further consideration. Defendant-appellee shall bear costs of this appeal.
Notes
. This court recently has held that the PLRA's exhaustion of remedies clause does not apply retroactively.
See Salahuddin v. Mead,
. The Sixth Circuit held in an unpublished decision,
Bibbs v. Zummer,
No. 97-2112,
