I.
From March 22, 1989 to November 6, 1989, appellee Thomas F. Mills resided at the Independence House, a community treatment center (Center) in Denver, Colorаdo, following his arrest in Colorado on drug charges. Mills was placed in the custody of the Center as a condition of release pending trial and sentenсing. On October 6, 1989, Mills was sentenced in the district of Colorado to a term of imprisonment of 30 months and a three-year term of supervised release.
Mills began service of his sentence at the Federal Prison Camp in Boron, California on November 6, 1989. On July 16, 1990, he filed his first petition for writ of habeas corpus, seeking credit аgainst his sentence for the time spent at the Center. This petition was dismissed without prejudice, however, to allow Mills to exhaust his administrative remedies with the Bureau of Prisons (BOP). The BOP denied the re *1399 quest for credit. 1 On January 15, 1991, Mills’ second petition was granted, and the appellant was ordered to award Mills jail time credit for the time spent at the Center prior to sentencing. The government appeals the grant of the petition for writ of habeas corpus. We affirm.
II.
Until 1987, credit for time served рrior to sentencing was governed by 18 U.S.C. § 3568, which required' that a convict receive “credit toward service of his sentence for any days spent in custody in cоnnection with the offense or acts for which sentence was imposed.” In
Brown v. Rison,
Section 3568, however, was repealed еffective November 1, 1987, and replaced with 18 U.S.C. § 3585, which provides that:
A defendant shall be given credit toward the service of a term of imprisonment for any time he has spent in official detention prior to the date the sentence commences ....
18 U.S.C. § 3585(b). The government argued before the district court that “officiаl detention,” unlike the phrase “in custody,” was a term defined by Congress to exclude time spent while residing at a community treatment center as a condition of release. In addition, the government urged deference to the BOP’s interpretation of section 3585(b), which would also preclude the crediting of time servеd while at a community treatment center. The district court held that “custody” and “official detention” are essentially synonymous, and that therefore appellee was entitled to receive credit for time served at the Center.
HI.
We review
de novo
the district court’s interpretation of federal statutes.
United States v. Schiffbauer,
The government argues that section 3585 must be interpreted in light of the whole of the Comprehensive Crime Control Act of 1984, Pub.L. No. 98-473, 98 Stat.1976 (1984). Chapter I of that Act, as the government notes, begins by diffеrentiating between release and detention: “A judicial officer ... shall order that an arrested person who is brought before him be released or detained, pending judicial proceedings, pursuant to the provisions of this chapter.” Pub.L. No. 98-473, § 203, 98 Stat.1976 (codified at 18 U.S.C. § 3141(a)). The government’s position is that “official detеntion” as used in section 3585 is to be understood as detention ordered by a judicial officer pursuant to sections 3141-3156. 2
We reject the government’s reading of thе statute. It is not at all apparent that the use of “detention” in the context of the provisions dealing with pretrial release and detention was intended by Congress to serve as a definition of “official *1400 detention” as used in section 3585. We do not dispute that section 3585 should be construed in terms of the Act as a whole. 3 But the government reads too much into the coincidence of terminology. As was the case with the provision interpreted in Brown, Congress has failed to рrovide an explicit definition of the term “detention.” And, as in Brown, it appears from a reading of the Act as a whole that Congress was employing “detention” in its ordinary and obvious sense, rather than tacitly establishing a technical definition.
We note that the words “detention” and “custody,” to a normal English speaker, are essentially synonymous. Indeed, “detention” is commonly defined as “[kjeeping in custody.”' IV Oxford English Dictionary 545 (2d ed. 1989); see also Webster’s Third New International Dictionary 616 (1966) (detention defined as “holding in custody”). It is therefore not surprising that we find Congress using “detention” and “custody” interchangeably, even in the provisions relied upon by the government for their proposed interpretation of “detention.” See, e.g., 18 U.S.C. § 3142(f)(2)(B) (“During a continuance, the person shall be detained, and the judicial officer ... may order that, while in custody, a person who appears to be a narcotics addict receive a medical examination”); 18 U.S.C. § 3142(i)(2) (“In a detention order ... the judicial officer shall ... direct that the person be committed to the custody of the Attorney General”) (emphasis supplied). The legislative history of seсtion 3585 even goes so far as to substitute “custody” for “detention” in its discussion of that provision: S.Rep. No. 225, 98th Cong., 2d Sess. 4 (1984), reprinted ' in 1984 U.S.C.C.A.N. 3182, 3312 (emphasis supplied). We thus conclude that Congrеss intended no change in meaning when it substituted “detention” for “custody.”
We are cognizant of the Supreme Court’s holding in
United States v. Wilson,
— U.S.-,
We must thеrefore conclude that the BOP’s interpretation of section 3585 is unreasonable in that it disallows credit for time spent in a community treatment center whilе awaiting trial and sentencing. We follow
Brown
in holding that when conditions of release approach those of incarceration, a person is in “offiсial detention” for purposes of section 3585.
See also Grady v. Crabtree,
To paraphrase
Brown,
confinement to a treatment center “fall[s] convincingly within both the plain meaning and the obvious intent” of “official detention” as it is used in section 3585.
AFFIRMED.
Notes
. The BOP held, and the government in the proceedings before the district court argued, that Mills was not entitled to credit since hе had been sentenced outside of the Ninth Circuit, rendering
Brown v. Rison,
. At least one other circuit has apparently accepted this reading of section 3585.
See United States v. Becak,
in this opinion, we decline to follow this approach.
. See 2A N. Singer, Sutherland on Statutory Construction § 46.05 (5th ed. 1992) ("A statute is passed as a whole and not in parts or sections and is animated by one general purpose and intent. Consequently, each part or section should be construed, in connection with еvery other part or section so as to produce a harmonious whole. Thus, it is not proper to confine interpretation to the one section to be construed.”).
