; or (ii) is subsequently classified as low risk by the Post-Sentencing Risk and Needs Assessment System. (6) Violations If a prisoner violates a condition of the prisoner’s prerelease custody, the Director of the Bureau of Prisons may revoke the prisoner’s prerelease custody and require the prisoner to serve the remainder of the prisoner’s term of incarceration, or any portion thereof, in prison, or impose additional conditions on the prisoner’s prerelease custody as the Director of the Bureau of Prisons deems appropriate. If the violation is nontechnical in nature, the Director of the Bureau of Prisons shall revoke the prisoner’s prerelease custody. (7) Credit for prerelease custody Upon completion of a prisoner’s sentence, any term of supervised release imposed on the prisoner shall be reduced by the amount of time the prisoner served in prerelease custody pursuant to paragraph (2). (8) Agreements with united states probation and pretrial services The Director of the Bureau of Prisons shall, to the greatest extent practicable, enter into agreements with the United States Probation and Pretrial Services to supervise prisoners placed in home confinement or community supervision under this subsection. Such agreements shall authorize United States Probation and Pretrial Services to exercise the authority granted to the Director of the Bureau of Prisons pursuant to paragraphs (4), (5), and (12). Such agreements shall take into account the resource requirements of United States Probation and Pretrial Services as a result of the transfer of Bureau of Prisons inmates to prerelease custody and shall provide for the transfer of monetary sums necessary to comply with such requirements. United States Probation and Pretrial Services shall, to the greatest extent practicable, offer assistance to any prisoner not under its supervision during prerelease custody under this subsection.