; (2) accept voluntary and uncompensated services, notwithstanding section 1342 of title 31; (3) procure for the Commission temporary and intermittent services to the same extent as is authorized by section 3109(b) of title 5; (4) collect systematically the data obtained from studies, research, and the empirical experience of public and private agencies concerning the parole process; (5) carry out programs of research concerning the parole process to develop classification systems which describe types of offenders, and to develop theories and practices which can be applied to the different types of offenders; (6) publish data concerning the parole process; (7) devise and conduct, in various geographical locations, seminars, workshops, and training programs providing continuing studies and instruction for personnel of Federal, State, and local agencies and private and public organizations working with parolees and connected with the parole process; 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