The opinion of the court was delivered by: BUA
NICHOLAS J. BUA, UNITED STATES DISTRICT JUDGE
Petitioner John Rasco is currently in federal custody. Claiming that the Federal Bureau of Prisons ("FBP") has miscalculated the date he is to be released from prison, Rasco petitions this court for a writ of habeas corpus.
For the reasons stated herein, the court denies Rasco's petition.
Rasco has an extensive criminal history; he has been in and out of jail for the past twenty years. On April 10, 1970, Rasco was initially sentenced to thirty days of imprisonment, an eight-year suspended sentence, and three years of probation for interstate transportation of forged securities. Rasco subsequently violated the terms of probation and, on January 19, 1971, he was ordered to serve the eight-year suspended sentence. On December 13, 1972, Rasco received a three-year term of imprisonment for concealment of assets in bankruptcy. The three-year sentence was to be served concurrently with the previously imposed eight-year sentence. Rasco's eight-year sentence, however, was vacated on appeal. He was resentenced in 1973 and given a six-year term of confinement.
Rasco was paroled on September 25, 1973. Since that time, he has consistently returned to prison on parole violations and convictions for various other crimes. Rasco's most recent sentence is a five-year term of imprisonment imposed on September 9, 1987, for violating 18 U.S.C. § 215. He is currently serving that sentence at the Metropolitan Correctional Center in Chicago, Illinois.
In support of his request for immediate release, Rasco contends that the FBP erroneously computed his statutory good time on the basis of eight days per month rather than ten days per month. In addition, Rasco claims that he should not have been denied meritorious good time while he was released on a writ of habeas corpus ad prosequendum.2
The FBP has been crediting Rasco with statutory good time at a rate of eight days per month. But Rasco claims that he is entitled to ten days per month of statutory good time, and that he would already have completed his sentence were it not for the alleged miscalculation.
For crimes committed before November 1, 1987, a prisoner can earn eight days of statutory good time per month if his sentence is between five and ten years. 18 U.S.C. § 4161. If the sentence is ten years or more, then a prisoner may accumulate ten days of statutory good time per month. Id. Rasco currently is serving a five-year sentence concurrent to his 1973 sentence, which had since become a parole violator term. For purposes of determining Rasco's aggregate sentence, both parties agree that the following FBP policy statement is applicable:
A new concurrent sentence imposed after a violator term has begun and having a full term date greater than the violator term will be aggregated into one sentence. The rate of [statutory good time] will be determined by adding the time served originally on what has since become a violator term to this aggregate for a total. The rate applicable to that total will be authorized.
Federal Bureau of Prisons, Policy Statement No. 5880.17(5)A(2). By adding Rasco's five-year concurrent sentence to the time he had already served under the parole violator term -- i.e., four years, ten months, and twenty-four days -- the FBP concluded that Rasco's total sentence is nine years, ten months, and twenty-four days. See Affidavit of Larry F. Dupont, at 3-4. Since that total is under ten years, the FBP credited Rasco with eight days per month of statutory good time. See 18 U.S.C. § 4161.
Rasco now claims that the FBP's calculations are erroneous. According to Rasco, the calculations should have included the period from October 24, 1980, to April 6, 1981, when he was on parole.
If this six-month period were included in the FBP's computation, Rasco contends, then his aggregate sentence would exceed ten years and he would be entitled to ten days of statutory good time per month. In deciding that Rasco should not be credited for the time he spent on parole, the FBP relied on policy statement No. 5880.17(5)A(2). That statement explicitly states that statutory good time is to be determined based on the "time served" under the parole violator term. Federal Bureau of Prisons, Policy Statement No. 5880.17(5)A(2). Although "time served" is not expressly defined, the FBP has equated time served with physical confinement. In the absence of any evidence indicating that this interpretation is unreasonable, the FBP's construction of its own ...