In order to insure that the inmate may be qualified to seek employment after release and thereby become an asset to society, as well as to such inmate, the board is authorized to adopt rules, regulations and policies permitting the commissioner to extend the limits of confinement of an inmate where there is reasonable cause to believe the inmate will honor the trust placed in such inmate, under prescribed conditions, to leave the confines of that place unaccompanied by custodial agents for a prescribed period of time to study in either a vocational or educational curriculum at an institution appropriate for the inmate's abilities.