There are no programs that will reduce his time except for RDAP (Residential Drug Abuse Program). RDAP is only available for federal inmates and you have to be approved almost before you go in, or at least prepare to apply to the program before you go in - having all of the proper language in your PSR (pre-sentence report).
https://www.inmateaid.com/ask-the-inmate/what-are-the-programs-that-he-can-take-to-reduces-his-time-to-come-home#answer
Accepted Answer Date Created: September 11,2016