Level 1-G1 Custody level permits convicts to reside in dormitories outside of the secure perimeter fence. Offenders with an “OT” custody level can work outside the secure perimeter with regular unarmed supervision.

Level 2-G2 Gustody level offenders are housed in dormitories or cells within a secure perimeter. However, they are allowed to work outside the frame under armed guards’ surveillance.

Level 3-G3 Custody level offenders reside in dormitories or cells within the main structure of the unit. They are not eligible for housing in dorms, outside the main building, or the security perimeter. G3 prisoners typically perform jobs within the restricted area assigned by the warden and may also be allowed to work outside the security fence under armed guards. It’s important to note that this custody level is reserved for offenders serving sentences of 50 years or more and does not apply to state jail offenders.

Level 4-G4 Custody-The offender will be housed in a cell under G4  general population custody, with a few exceptions. They may work outside the security perimeter under direct armed supervision. 

Level 5-G5 Custody is for offenders with a history of violence or assault. These felons live in cells and are restricted from working outside the perimeter’s protection without direct armed surveillance.

Level 6-Administrative Segregation-Administrative Segregation, often referred to as SR confinement for state jail inmates, is used for those who need to be kept from the main population and who are a danger to themselves or others. Those who TDCJs have designated as members of security threat organizations may receive this level of incarceration.