How many months does a federal inmate have left on his or her sentence upon entering the release preparation program?

It was previously 18 to 24 months which were later changed to 30 months.

The Release Preparation Program's (RPP) intention is to set up every prisoner to re-enter the community effectively and especially, the work force. Executing this Program Proclamation guaranteed that the reason and extent of all organization/unit release planning programs are steady all through the Bureau.