C-4 inmates are held in a Close Custody Unit, which is also separate from the general population. C-4 inmates may have a few more privileges than C-5 inmates, but they do not have the full number of privileges enjoyed by the general population. They may work, they are not shackled as they move outside their cells, they may eat in the dining hall with the general population, and they have cellmates. Also, the C-4 floor plan is similar to that for C-3 inmates: each cell opens into a common area where inmates may talk and play cards or other games. However, unlike C-3 inmates, C-4 inmates may not lock themselves in their cells for privacy, they may work for only a short period of time at a specific work site, and they generally have fewer privileges and are more strictly supervised than C-3 inmates.

C-3 inmates comprise the general population. They may move about the prison facility unencumbered by restraints. They work at various jobs, some building high-quality furniture. Inmates can earn from $1.50 to over $3.00 per day, depending on the job. Those who perform highly skilled work, such as carpentry, may earn $3.50 a day. Inmates do not receive cash for their work; their earnings are banked in an account. Using their account, they may buy articles from the canteen, such as personal hygiene products, soda, candy, chips, and cigarettes. Inmates may smoke cigarettes in the common area and in their cells. However, if his cellmate objects, an inmate may not smoke in his cell.

An inmate may receive money from persons outside the prison, but he may not receive packages of personal items. He may not spend more than $200 per month, no matter how much money he has. He may buy items such as magazines, books, radios, and televisions, but only through the manufacturer.

Inmates on C-3 status enjoy the full range of educational and work opportunities available in the prison, and their days are often consumed by these activities. They may also use the law library for a certain amount of time each day.

An inmate's day begins at approximately 7:00 A.M. Those inmates scheduled to begin work before 7:00 A.M. are awakened earlier. The lights are dimmed around 10:00 P.M. and sometimes 11:00 P.M. on weekend nights. Except for C-5 inmates, restless inmates may leave their cells during the night to sit in the common area.