28 C.F.R. § 2.5 Sentence aggregation.
Title 28 - Judicial Administration
When multiple sentences are aggregated by the Bureau of Prisons pursuant to 18 U.S.C. 4161 and 4205, such sentences are treated as a single aggregate sentence for the purpose of every action taken by the Commission pursuant to these rules, and the prisoner has a single parole eligibility date as determined by the Bureau of Prisons. [45 FR 44925, July 2, 1980]
Title 28: Judicial Administration
PART 2—PAROLE, RELEASE, SUPERVISION AND RECOMMITMENT OF PRISONERS, YOUTH OFFENDERS, AND JUVENILE DELINQUENTS
Subpart A—United States Code Prisoners and Parolees
§ 2.5 Sentence aggregation.