dissenting.
While I agree with the majority that Congress did not adequately define “official detention,” I disagree with the majority’s decision to reject the Bureau of Prisons’ interpretation and adopt the broader definition used by the Ninth Circuit in Brown v. Rison, 895 F.2d 533, 536 (9th Cir.1990).
Because the Brown court usurped the BOP’s interpretative role without sufficient justification, I do not believe that Brown was correctly decided. In Chevron U.S.A. v. Natural Resources Def. Council, 467 U.S. 837, 104 S.Ct. 2778, 81 L.Ed.2d 694 *694(1984), the Supreme Court held that if a statute is “silent or ambiguous with respect to the specific issue,” and if “the agency’s answer is based on a permissible construction of the statute,” we must defer to the agency’s interpretation. Id. at 843, 104 S.Ct. at 2781; accord Hammontree v. N.L.R.B., 925 F.2d 1486, 1491 (D.C.Cir.1991). The issue in Brown, like the issue in this case, hinges on the interpretation of the phrase “official detention” in the statute. The absence of any clarifying language in the congressional history of the statute and the disagreement in the circuits over the interpretation of this phrase supports the conclusion that § 3585’s reference to “official detention” is ambiguous. The Bureau of Prisons resolved this ambiguity in its Program Statement on Sentence Computation, Jail Time Credit Under 18 U.S.C. § 3568, BOP Program Statement 5880.24(5)(b)(5). The Ninth Circuit refused to accept the BOP interpretation because it believed that this interpretation “excludes [from sentencing credit] enforced residence under conditions approaching those of incarceration.” Brown, 895 F.2d at 536. This is simply not true. The same section of the Program Statement cited by the majority in this case also states that “time spent in jail-type facility (not including a community based program located in a Metropolitan Correctional Center or jail) as a condition of bail or bond is creditable as jail time because of the greater degree of restraint.” BOP Program Statement 5880.-24(5)(b)(5) (emphasis in original). The BOP makes a clear distinction between residential community centers and jail-type facilities based on their respective degrees of restraint and explicitly grants sentencing credit when a presentencing defendant is placed under a great degree of restraint. This is both a reasonable and permissible construction of § 3585. Therefore, since Chevron requires courts to defer to permissible constructions of ambiguous statutes, the Ninth Circuit should have deferred to the BOP’s interpretation of “official detention” and not granted the presen-tencing defendant sentence credit for time spent in halfway house.
Even if Brown were correct, however, it would not apply in this case because the liberty restrictions in Brown were greater than those placed upon Moreland in RSCTC. In Brown, the court acknowledged its responsibility to defer to the BOP’s interpretation but declined to do so because, in its view, the BOP’s policy was unreasonable and “contrary to the considerations of fairness.” Id. at 536. The Brown court held that the restrictions of the halfway house were “simply too close to incarceration to permit a distinction for purposes of credit against his sentence.” Id. at 536. The conditions in Brown were clearly more restrictive than those placed on Moreland at RSCTC. In Brown, the curfew lasted from 7:00 p.m. to 5:00 a.m. and during that time the prisoners were allowed no outside contact. In contrast, Moreland’s curfew lasted from midnight to 8:00 a.m. with limited phone privileges. While Moreland was subject to some of the restrictions present in Brown — no drugs, no alcohol, drug testing, and limited travel — Moreland still had much more liberty in RSCTC than he would have had in jail. The Ninth Circuit’s analysis falls far short of being compelling and is not as persuasive as the Fourth, Seventh and Tenth Circuits’ approach.
In Ramsey v. Brennan, 878 F.2d 995 (7th Cir.1989), the Seventh Circuit refused to grant sentence credit for time spent in a halfway house. The court opined that whether the deprivation of liberty associated with confinement in a halfway house, a “twilight zone between prison and freedom,” qualifies as official detention was not “a question susceptible of rational determination, at least by tools of inquiry available to judges.” Id. at 996. Instead of making such a determination, the court deferred to the BOP policy statement that prohibits using time spent in a residential community center as credit toward jail time. Brennan, 878 F.2d at 996 (quoting BOP Policy Statement No. 5880.24(5)(b)(5)).
In United States v. Woods, 888 F.2d 653 (10th Cir.1989), cert. denied, — U.S. -, 110 S.Ct. 1301, 108 L.Ed.2d 478 (1990), the Tenth Circuit reached the same result without relying on the BOP policy statement. *695The Woods court held that official detention” means “imprisonment in a place of. confinement, not stipulations or conditions imposed upon a person not subject to full physical incarceration.” Id. at 655; see also United States v. Insley, 927 F.2d 185 (4th Cir.1991) (adopting Woods standard, which required actual physical incarceration for official detention sentence credit). Consequently, the court held that presen-teneing detention in a halfway house could not be used for sentence credit. Id.
Furthermore, a plain reading of the relevant statutes indicate that Moreland was not in detention when he resided at RSCTC, but rather was granted a conditional release. Presentencing defendants who are permitted to reside in a halfway house are not in detention under the Release and Detention Pending Judicial Proceedings chapter of the U.S.Code. 18 U.S.C. § 3141-56 (1988). At a criminal defendant’s first appearance before a judicial officer after arrest, the judicial officer must issue an order on the defendant’s pretrial status. The defendant is either released (with or without conditions) or detained. 18 U.S.C. § 3142(a). If the defendant is detained, the detention order must include language that directs that the de-. fendant be “committed to the custody of the Attorney General for confinement in a corrections facility_” 18 U.S.C. § 3142(i)(2). However, if the defendant is released, at worst he must “remain in the custody of a designated person, who agrees to assume supervision and to report any violation of a release condition to the court....” 18 U.S.C. § 3142(c)(lj(B)(i). Furthermore, when determining the conditions of release, the judicial officer must maintain the presumption of innocence of the presentencing defendant,1 18 U.S.C. § 3142(j), and impose the “least restrictive” conditions that “will reasonably assure the appearance of the person as required and the safety of any other person and the community....” 18 U.S.C. § 3142(c)(1)(B). Placing a presentencing defendant in the custody of a halfway house is one common form of conditional release. If a presen-tencing defendant is committed to the custody of a halfway house, he is not in the custody of the Attorney General, and therefore is not in detention. Therefore, if a presentencing defendant is not in detention, he cannot be considered in “official detention” for purposes of sentencing credit.
Moreland also argues that the BOP’s denial of sentence credit for his presentenc-ing detention in RSCTC violated the equal protection clause because other prisoners were able to credit their time at RSCTC against their sentences. Since presentenc-ing defendants are not a suspect class, Moreland’s equal protection argument is reviewed under a rational basis standard. See Cleburne v. Cleburne Living Center, Inc., 473 U.S. 432, 439-41, 105 S.Ct. 3249, 3254-55, 87 L.Ed.2d 313 (1985). Therefore, Moreland prevails if (1) persons who are similarly situated are treated differently by the government, and (2) the government fails to provide a rational basis for the dissimilar treatment. Id.
The government addressed this argument in the district court, pointing out that presentencing defendants and postsentenc-ing defendants2 are not similarly situated. I agree. Postsentencing defendants are legally distinct from presentencing defendants and therefore, sentence credit provided for postsentencing defendants in a halfway house need not be provided for presen-tencing defendants living under the same conditions. First, presentencing defendants are presumed innocent and are *696placed in the halfway house under that presumption. Postsentencing defendants have been adjudicated guilty and do not enjoy the benefits of this presumption. There can hardly be a greater difference in legal status within the American criminal justice system. Furthermore, the presen-tencing defendant is sent to a halfway house by a judicial officer whose statutory goal is to impose the least restrictive conditions upon the defendant’s liberty. A post-sentencing defendant is sent to a halfway house because such a facility is appropriate in light of her crime, the circumstances surrounding the crime, and her background.
The second radical legal difference between a presentencing defendant and a postsentencing defendant is their custody status. A presentencing defendant in a halfway house is under the custody of the proprietors of the halfway house. A post-sentencing defendant is in the custody of the Attorney General and under the authority of the Bureau of Prisons (BOP). The postsentencing classification procedure presents a sharp contrast. Upon receiving custody, BOP initiates a procedure to determine the postsentencing defendant’s security level (i.e., Minimum, Low, Medium, or High). In making this determination, the BOP considers a myriad of factors which include aspects of the conviction, judicial recommendations, public safety factors, potential to cause institutional disruption, escape potential, etc. Bureau of Prisons, Security Designation & Custody Classification Manual, Policy Statement 5100.3, Ch. 8 (1991). Based upon the security level, post-sentencing defendants are assigned to high security facilities (penitentiaries); medium security facilities with double fences, gun towers, armed perimeter patrols, low security facilities with a single fence, no gun towers and reduced security; or minimum security with no fences and minimal security (e.g., halfway houses).
Therefore, even though a postsentencing defendant and a presentencing defendant may both spend time in a halfway house, the BOP is not obligated to treat them similarly because they were put in the halfway house under significantly different legal conditions. It is also important to note that for a postsentencing defendant, a halfway house is one of the least restrictive options while a halfway house for a presen-tencing defendant is one of the most restrictive alternatives.
For these reasons, I believe the district court properly denied Moreland’s equal protection claim. See Woods, 888 F.2d at 656 (as a matter of law, presentencing defendants and postsentencing defendants are not similarly situated because of divergent legal status).
Moreland also argues that the district court should have adopted the Eleventh Circuit’s approach in Johnson v. Smith, 696 F.2d 1334 (11th Cir.1986). In Johnson, the court stated that treating presentenc-ing defendants and postsentencing defendants differently would not violate the Constitution if (1) conditions for presentencing defendants were less restrictive than for postsentencing defendants, or (2) the government had a rational reason for the disparate treatment of the two similarly situated groups. Id. at 1337. However, the Johnson court explicitly refused to consider the antecedent question of whether presentencing defendants and postsentenc-ing defendants are similarly situated because the government had conceded that they were similarly situated in the district court. Id. at 1338. Furthermore, the court qualified its decision by stating: “We do not base our decision on any determination as to whether or not post-sentence and pre-sentence detainees are always similarly situated ... or whether or not a rational reason for disparate treatment of the two groups could ever be shown.” Id. The holding in Johnson does not apply here because presentencing defendants and postsentencing defendants are not similarly situated and Moreland does not have the benefit of a concession from the government on this issue.
Since Moreland was not officially detained while at RSCTC and since there was no equal protection violation in treating presentencing defendants differently from postsentencing defendants, I would affirm the district court’s denial of Moreland’s ha-beas petition.
*697ORDER
July 29, 1991
Appellee’s petition for rehearing with suggestion for rehearing en banc in No. 90-5875 Robert Scott Moreland v. United States has been considered by court and is granted. The opinion and judgment of this court filed April 24, 1991, are hereby vacated.
On the court’s own initiative, rehearing en banc has been granted in No. 90-2534 United States v. Titus T. Moore, No. 90-2535 United States v. Vaughn R. Bradley and No. 90-2958 United States v. Michael E. Wickman. The clerk will notify the parties of the time and place of oral argument at a later date.
. Once a defendant has been found guilty of a crime, the presumption of innocence is replaced by a presumption of detention. This presumption of detention can be overcome if a judicial officer finds by clear and convincing evidence that the defendant "is not likely to flee or pose a danger to the safety of any other person or the community if released.” 18 U.S.C. § 3143(a) (1988). If a presentencing defendant has been found guilty and remains in a halfway house without a transfer of custody to the Attorney General, then it is clear that the presumption of detention has been overcome and the presen-tencing defendant is still on conditional release.
. At this point, the criminal defendant is more properly referred to as “prisoner” or "inmate," but to simplify the discussion, I will use the phrase “postsentencing defendant.”