If he is in Level 4 custody confinement, he will not likely be eligible for a Level 1 Enid Work Center. Level 4 inmates cannot transfer downward until his custody status is lowered.
https://www.inmateaid.com/ask-the-inmate/husband-been-in-since-aug-of-last-year-he-is-in-level-4-waiting-on#answer
Accepted Answer Date Created: August 11,2016