This is an action under 42 U.S.C. § 1983 brought by Fred L. Pletka, an inmate at the Iowa State Penitentiary, against two prison officials. In 1986, Pletka was in disciplinary confinement. No one denies that he was accorded due process before being punished in this way. Late that year, Iowa transferred him to the Texas prison system under the Interstate Corrections Compact, see Iowa Code Ann. § 247.2 (West Supp.1991). Shortly after Pletka arrived in Texas, the Texas prison authorities placed him in the general population. When he returned to Iowa, he was put back in disciplinary confinement without a new hearing. Pletka contends that these events deprived him of liberty, his right to be in the general prison population, without due process of law.
The District Court agreed, holding that the Texas prison system’s action completely satisfied the disciplinary “sentence” that Pletka had previously received in Iowa. Pletka could not be returned to disciplinary confinement, therefore, the Court held, without some sort of new process. The Court issued an injunction commanding the defendants to change their records to show that Pletka had fully served his disciplinary time, and to return him to the general population. It declined to award any money damages, however, on the ground that the defendants were entitled to qualified immunity. On appeal, a panel of this Court, one judge dissenting, affirmed in part and reversed in part. Pletka v. Nix, 943 F.2d 916 (8th Cir.1991). The panel agreed with the District Court that Pletka’s due-process rights had been violated, but did not believe that the defendants were protected against an award of damages by *1482the defense of qualified immunity. The dissenting judge took the position that none of Pletka’s rights had been violated. We granted the defendants’ suggestion for rehearing en banc, thus vacating the panel opinion and the judgment entered in accordance with it.
I.
The District Court ruled on cross-motions for summary judgment. The facts are simple and undisputed. In 1986, Fred L. Pletka, an Iowa inmate. serving a life sentence, was in disciplinary segregation for infractions he had committed since 1981. No one contends that the process leading to plaintiff’s initial placement in disciplinary confinement was legally defective in any way. On December 20, 1986, plaintiff was transferred to Texas under the Interstate Corrections Compact. At that time, he had accumulated disciplinary “sentences” that would have lasted until March of 1989. On January 5, 1987, Texas prison authorities released Pletka into the general prison population. In September of 1987, Pletka was returned to Iowa. There, prison authorities returned him to disciplinary confinement. He was not given a new hearing. Defendants’ action was based on their belief that Pletka was “required to serve the remainder of [his] time when [he] ... return[ed] to the sending state.” Affidavit of John Emmett, Correctional Security Director at the Iowa State Penitentiary, 119, Appellant’s Appendix 12.
This is all we know about the case of any consequence. Plaintiff was unable to suggest what kind of hearing could or should have been held upon his return to Iowa. He takes the position, instead, and the panel opinion essentially agreed, that Pletka’s release into the general prison population in Texas was a complete exoneration of his Iowa disciplinary sanctions. Accordingly, he could not be returned to disciplinary confinement in Iowa at all, unless he committed a new infraction, which no one suggests. We do not know why Texas took Pletka out of disciplinary confinement and placed him in its own general prison population. We do not know what form of words, oral or written, if any, was used to describe this action in Texas, or to explain it to Pletka. We do not know whether the Texas authorities told Iowa what they had done. We do not even know whether Texas was aware that Pletka had been in punitive status in Iowa.
Plaintiff’s main reliance is on our opinion in Hayes v. Lockhart, 754 F.2d 281 (8th Cir.1985). In Hayes, an Arkansas prisoner held in administrative segregation was transferred to Florida, where he was released into the general population. Upon his return to Arkansas, he was immediately returned to administrative segregation. This Court held that the inmate was entitled to due process before Arkansas could return him to administrative confinement. In the particular case, the inmate did not prevail, because we held that a hearing given him 15 days after he was returned to administrative segregation was sufficient to satisfy the Due Process Clause of the Fourteenth Amendment. The case is cited for two propositions relevant here: (1) that the inmate, upon his return to the sending state, could not be returned to a special confinement status without a new hearing; and (2) that under the Interstate Corrections Compact, the receiving state, Florida, acted as agent for the sending state, Arkansas, and Florida’s release of the inmate into the general population was therefore the legal equivalent of a release into the general prison population in Arkansas. Hayes, 754 F.2d at 283 n. 1.
On this reasoning, Pletka claims that Texas acted as Iowa’s agent when it released the plaintiff into the general prison population. The legal effect of this release was exactly the same as if it had occurred in Iowa. We agree with plaintiff that Hayes stands for these propositions. But there is a crucial difference between Hayes and the present case. Hayes was not being punished. He was not in disciplinary confinement on account of past bad acts. He was in “administrative segregation,” a term which, under the Arkansas prison regulations, carried no punitive implications. It meant only, that, for reasons of administrative convenience, protection of the inmate or others, or the like, prison authori*1483ties considered it appropriate to impose upon the inmate conditions of confinement more restrictive than those applying to the general population. These sorts of conditions typically change from time to time. A threat to an inmate may disappear, for example, when the prisoner who is the source of the threat is released or transferred to another institution. The passage of time, therefore, makes it entirely appropriate for circumstances to be carefully reexamined, and any changes in conditions assessed, before a prisoner who has been absent for a considerable period is returned to the special conditions of confinement to which he was subject when he left the sending state. Pletka’s situation is quite different. He was in special confinement, to use a generic term, because of past rules infractions. A hearing determining his guilt and punishment had already been held. There was nothing for a new hearing to address. He simply had to serve out his time.
The panel opinion, 943 F.2d at 919 n.,6, suggests that there were purposes that a new hearing could have served. Pletka could at least have been told why his detention was being reinstated, it is argued. Furthermore, review hearings could have been held to determine whether punitive sanctions should have been lifted before their stated term expired. Pletka might have been able to show, for example, that while in the general population in Texas he had behaved well. This demonstration of rehabilitation, it is argued, might have persuaded the Iowa authorities, if they had given Pletka a hearing, not to return him to punitive confinement. The suggestions are ingenious, but we think they have nothing to do with the present case. In the first place, Pletka does not claim that he was in the dark as to the reasons for Iowa’s returning him to punitive confinement upon his return from Texas. It was quite clear, and Pletka knew, that the Iowa authorities thought he still had time to serve on the previously imposed disciplinary sanctions. Secondly, Pletka has never claimed, either in the District Court or in this Court, that he had a right to the kind of “review hearing” referred to by the panel. His position is simpler: his release into the general prison population in Texas extinguished the Iowa disciplinary sanctions, and he could not be returned to punitive confinement in Iowa in the absence of a new infraction.
We turn, then, to this key question. What was the legal effect of the Texas action? Was it a sort of pardon, a complete forgiveness and exoneration of the punishment imposed for Pletka’s multiple offenses while at the Iowa State Penitentiary? The panel opinion answered this question in the affirmative. We do not. Plaintiff cites no law, either statute, regulation, or prison practice, to support such a result. The panel opinion, 943 F.2d at 918 n. 5, argues that the District Court found as a fact that Pletka’s release into the general population was “a completion and exoneration of his disciplinary sentence.” We disagree. First, there is no evidence in this record to support such a finding. There is not even any evidence of what the Texas authorities thought the effect of their action might be on the Iowa sanctions, or even that they knew that there had been any Iowa sanctions. Second, and more fundamentally, the proposition in question is not a finding of fact. The legal effect of the Texas action is a question of law, and, as we have noted, there is simply no authority to support the complete-exoneration theory. Ordinarily, we are justified in assuming that Iowa prison authorities’ official action is in compliance with applicable Iowa law, regulations, and practices. Their action is presumed to be legal and constitutional, to use an old formulation.1 Pletka has given us nothing with which to overcome this presumption.
II.
Several new arguments are now offered against our conclusion.
*14841. It is said that the Interstate Corrections Compact itself, Iowa Code Ann. § 247.2 (West Supp.1991), creates a liberty interest, so that Pletka, having been placed in the general population by the Texas prison system, must be given a new hearing before being returned to disciplinary segregation in Iowa. Post, p. 1486 (dissenting opinion). No provision of the Compact says anything about liberty interests. The provision quoted by the dissent, post n. 4, says nothing at all about rights to a hearing before being returned to segregation in the sending state. In fact, the provision confirms that Pletka remained subject to Iowa law, regulations, and practice while confined in Texas pursuant to the Compact. Nothing in the Compact even purports to answer the question of whether, under Iowa law, the unexplained return of a prisoner to general population is a complete exoneration of previously imposed disciplinary sanctions.
2. It is asserted that Hayes v. Lockhart, supra, is controlling. Hayes holds that the release of a prisoner into the general population by a receiving state is the equivalent of a release of that prisoner into the general population by the sending state. We have acknowledged and followed that holding. This does not solve the present case. We are conceding that Plet-ka must be treated exactly as if Iowa, not Texas, had released him into the general population. Despite the unequivocal statement in the dissenting opinion, post p. 1486, nothing in Hayes holds that a prisoner confined for disciplinary reasons enjoys a complete pardon just because he has been returned to the general population. To be sure, that could be so. But whether it is depends on Iowa law, and after two rounds of appellate briefing and two oral arguments no one has cited any Iowa law establishing such a proposition. The crux of the analysis in Hayes was that, under Arkansas prison regulations, a prisoner initially confined for nonpunitive reasons, and then released into the general population, could not be returned to special conditions of confinement absent a certain substantive predicate, which, under controlling federal law, would have to be established in some sort of hearing. The portion of the Hayes opinion cited by the dissent actually demonstrates this, because it cites “Administrative Regulation § 836,” which is the Arkansas prison regulation creating the liberty interest relied on by the Hayes Court.
3. Finally, it is said that Iowa’s prison regulations confer a liberty interest on prisoners who, like Pletka, have been released into the general population. No Iowa prison regulation is cited for this proposition. The authorities cited are two cases, Clark v. Brewer, 776 F.2d 226, 230-32 (8th Cir.1985), and Dedrick v. Wallman, 617 F.Supp. 178, 182 (S.D.Iowa 1985). Neither case is in point. Clark considers generally the status of prisoners in the general population in the Iowa State Penitentiary. It holds that certain cited Iowa prison regulations give prisoners a right to remain in the general population, as opposed to being placed in “close management,” unless certain substantive predicates are met. Accordingly, prisoners in the general population have a liberty interest in remaining there, and they may not be transferred to “close management” without due process of law. The “close management” status involved in Clark was a nonpunitive status, sometimes called “administrative segregation,” as opposed to “disciplinary segregation.” Clark has nothing to do with prisoners who have received disciplinary segregation after concededly constitutional procedures, and have then, for some reason, been returned to the general population. The transfer in question in Clark was from the general population to administrative, nonpunitive confinement. The transfer in question here is from the general population to punitive confinement, in the case of an inmate who has already been found after an appropriate hearing to deserve punitive confinement. Clark is beside the point.
Dedrick is also inapposite. It holds that inmates have a liberty interest in not being placed in special conditions of confinement for disciplinary reasons. No one has ever doubted this. It has always been true that a person may not be punished by government without due process of law. Here, Pletka has been punished, but he received *1485due process before his punishment began. The point at issue in the present case is whether his release into the general population before he had served his whole time in disciplinary confinement completely wipes out the earlier sentence, despite the fact that no one ever told him so. If Iowa wanted to adopt such a rule, certainly it could, and, if it did, Pletka could not be punished again without a subsequent rules infraction and a new due-process hearing. But Iowa has not done this, and neither Hayes, nor the Interstate Compact, nor Clark, nor Dedrick can supply this essential lack in the logical foundation of the plaintiffs claim.
III.
Accordingly, we hold that the action of the defendant Iowa prison officials in this case did not violate Pletka’s rights under the Due Process Clause of the Fourteenth Amendment. That portion of the judgment of the District Court which granted Pletka equitable relief must therefore be reversed. Our conclusion that no conduct in violation of the federal Constitution occurred makes it unnecessary to discuss the defense of qualified immunity. So much of the judgment of the District Court as dismissed Pletka’s claim for damages is affirmed, but simply on the ground that no violation of the Constitution has taken place. We express no view on the question of qualified immunity that would arise if Pletka’s constitutional theory had merit.
Affirmed in part, reversed in part.2
. But still a good one. See United States Department of State v. Ray, — U.S. -, 112 S.Ct. 541, 550, 116 L.Ed.2d 526 (1991).
.Plaintiff has been represented in this Court and in the District Court by appointed counsel. We are grateful to her for her. diligent and effective service.