; and (8) use the services, equipment, personnel, information, facilities, and instrumentalities with or without reimbursement therefor of other Federal, State, local, and private agencies with their consent. (c) Consistency with national parole policies In carrying out the functions under this section, the Chairperson shall be governed by the national parole policies promulgated by the Commission. 3634. Time of eligibility for release on parole (a) Eligibility (1) In general Except to the extent otherwise provided by law— (A) a prisoner confined and serving a definite term or terms of imprisonment of more than 1 year shall be eligible for release on parole after serving 33.3 percent of such term or terms; and (B) a prisoner confined and serving a life sentence shall be eligible for release on parole after serving 10 years. (2) Terms of less than 1 year Any prisoner sentenced to imprisonment for a term or terms of not less than 6 months, and not more than 1 year, shall be released at the expiration of such sentence, unless the court which imposed sentence shall, at the time of sentencing, provide for the prisoner's release after service of 33.3 percent of such term or terms, which shall be deemed to be as if released on parole. This paragraph shall not prevent delivery of any person released on parole to the authorities of any State otherwise entitled to custody of the person. (b) Determinations by court Upon entering a judgment of conviction, the court having jurisdiction to impose sentence, when in its opinion the ends of justice and best interest of the public require that the defendant be sentenced to imprisonment for a term exceeding 1 year, may— (1) designate in the sentence of imprisonment imposed a minimum term at the expiration of which the defendant shall become eligible for parole, which term may not be more than 33.3 percent of the maximum sentence imposed by the court