The Yellowstone County Detention Facility utilizes an "Objective Jail Classification System" for the screening and placement of inmates within the Facility. This system is supported and endorsed by the National Institute of Corrections.

The Objective Jail Classification system provides a tool for assessing every jail inmate's custody and program needs. A primary purpose of the Classification system is to maintain security and order within the facility. To achieve this, every inmate will be classified after admission and will then be assigned to an appropriate housing unit according to their classification status, usually within 24 hours.

The Classification process involves compiling information on each inmate through historical criminal history checks, previous incarceration history and a personal interview. Placement to a specific housing unit/classification level within the facility can depend on the inmate's previous criminal history, violence of the criminal history, current charges, and stability factors. Also taken into consideration are mental health issues and medical concerns. There is no discrimination by race, age, sex, religion or national origin when making classification decisions.

Questions regarding the Classification system can be directed to: ycdfbc@yellowstonecountymt.gov.