Inmate Classification: Security Levels, Scoring, and Reviews

Federal inmate classification is the Bureau of Prisons’ two-part system for deciding where you’ll be housed and what you’ll be allowed to do once you’re there. One designation is your security level, which controls the facility; the other is your custody level, which controls your movement inside it. Both come out of a point-scored worksheet under Program Statement 5100.08, and both can be overridden by factors the score doesn’t capture.¹ Understanding the math, and the overrides, is the single most useful thing you can do to influence your placement.

The Five Security Levels

The BOP operates five security levels, each defined by its physical features: fencing, housing style, detection equipment, and staffing ratios.¹

Minimum security (federal prison camps) uses dormitory housing with limited or no perimeter fencing and the lowest staffing ratio. Some camps operate as satellites to larger institutions.
Low security has double-fenced perimeters, dormitory or cubicle housing, and more staff per inmate than a camp.
Medium security adds electronic detection along reinforced perimeters and replaces open dormitories with cells.
High security (U.S. Penitentiaries) uses reinforced walls or multiple fence layers, single or double-occupancy cells, and the highest staffing ratios, with heavily controlled movement.
Administrative facilities serve a specialized mission — pretrial detention, long-term medical care, mental health treatment — and can house people at any security level. The Administrative Maximum facility (ADX) in Florence, Colorado falls here.²

Custody Levels Inside the Facility

Your security level determines the facility. Your custody level determines what you can do once you’re inside. The two are separate, and the distinction trips people up. The BOP assigns one of four custody levels.³

Community custody is the lowest supervision level. You may be eligible for housing outside the perimeter, work details with minimal oversight, and community-based programs.
Out custody lets you work on details outside the secure perimeter, with staff checks at least every two hours.
In custody keeps you inside the secure perimeter at all times, with regular work and activities available within the institution.
Maximum custody is the highest level of control, designed for people identified as assaultive, serious escape risks, or seriously disruptive.

Two people at the same medium-security facility can live very different lives depending on their custody designation. One never leaves the fence line; the other might work on a landscaping crew outside it. When your custody classification changes through good behavior or completed programming, your unit team can recommend a transfer to a facility that matches your new level.²

How Your Security Score Is Calculated

The BOP uses an objective scoring worksheet. Each variable gets a point value, and the total maps to a security level. For men: 0–11 points for minimum, 12–15 for low, 16–23 for medium, 24 or more for high. For women: 0–15 for minimum, 16–30 for low, 31 or more for high. There is no separate medium designation for women.³

The scoring worksheet draws from several categories:⁴

Offense severity, scored from 0 (lowest) to 7 (greatest), based on the BOP’s Offense Severity Scale. Different convictions fall in different bands — drug trafficking, for example, does not score the same as fraud.
Criminal history, scored from 0 to 10 based on criminal history points. Thirteen or more points produces the maximum 10.
Escape history. No history scores 0. A minor escape more than 15 years ago adds 1. A serious escape within the last five years adds 3 and triggers a mandatory Public Safety Factor that can override the total score.
Age, ranging from 0 points at 55 or older to 8 points at 24 or younger. This is one of the few variables that improves automatically with time.
Education level. A verified high school diploma or GED scores 0. Active enrollment in a GED program scores 1. No diploma and no enrollment scores 2.

Most of this data comes from the Presentence Investigation Report prepared by the U.S. Probation Office. The Designation and Sentence Computation Center processes intake paperwork and runs the scoring.¹ Mistakes happen at this stage. Incorrect criminal history scores, miscategorized offense severity, wrong age data. Catching them early matters, because every extra point pushes you toward more restrictive housing.

Public Safety Factors and Management Variables

Public Safety Factors are flags that override your point total. Even if the math qualifies you for minimum security, a PSF can require placement at a higher level until the factor is formally waived.¹ The most common:

Non-citizen status. If you are not a U.S. citizen, the Deportable Alien factor applies automatically, requiring at least a low-security facility. It is removed only if immigration authorities determine deportation proceedings are unwarranted, issue a finding not to deport, or you become a naturalized citizen.³
Sex offense history. Any history of sexual assault, child exploitation material, or sexual contact with a minor requires at least low security.
Greatest severity offense (men). A conviction in the highest band of the Offense Severity Scale requires at least low security.
Disruptive group membership (men). Validated gang membership flagged in the Central Inmate Monitoring System requires high-security placement.
Serious escape history within the relevant lookback period.
Sentence length (men). More than 10, 20, or 30 years remaining triggers progressively higher minimum security requirements.

Management Variables work the other direction. A sentencing judge’s recommendation, an anticipated release location that justifies placement within 500 miles of home, medical needs, program participation (such as the Residential Drug Abuse Program), or population pressures at a facility can all justify placement at a level different from what the score produces. A “Lesser Security” variable can move you below your calculated level; a “Greater Security” variable can hold you above it when concerns like pending charges aren’t captured by the formula.¹

Medical and Mental Health Care Levels

Health needs can override a standard security designation entirely. Every person is classified into one of four care levels, and facilities are rated by their clinical capabilities. If your care level exceeds what your assigned facility can provide, you’ll be moved to one that can, regardless of your security score.⁵

Care Level 1: generally healthy, with any chronic conditions manageable through clinician visits every 6–12 months.⁶
Care Level 2: stable outpatients needing scheduled specialist appointments or more frequent monitoring, typically monthly to every six months. Someone with a pacemaker or implanted device generally falls here.
Care Level 3: complex chronic conditions requiring frequent clinical contact to prevent hospitalization, possibly with help needed for some daily activities and periodic hospitalizations for stabilization.
Care Level 4: requires 24-hour skilled nursing care, available only at a BOP Medical Referral Center.

Mental health follows a parallel track. When psychiatric care requirements reach Care Level 3, they can take priority over medical care levels for designation purposes, meaning a mental health placement can drive where you go even if your physical health would put you elsewhere.⁵ One practical limit: if you’re at Care Level 3, the BOP ordinarily won’t transfer you within 12–18 months of your projected release date unless local services can’t meet your needs.

Reclassification Reviews

Classification is not a one-time event. Your custody score is reviewed at least every 12 months through a formal program review, and reviews can happen sooner if circumstances change.¹ Staff evaluate your disciplinary record, program participation, and work performance since the last assessment.

A clean disciplinary record is the foundation. No incident reports, consistent rule compliance, and positive work-supervisor evaluations all support a score reduction. Completing educational courses, vocational training, or treatment programming adds evidence. When the recalculated score falls into a lower security range, your unit team can recommend a transfer. That recommendation goes to the Designation and Sentence Computation Center for approval.²

Movement generally happens one level at a time. A person at a medium facility who earns Community custody would normally be referred for transfer to a low or minimum facility, because medium institutions don’t house Community-custody individuals. If a transfer is denied for population or other reasons, DSCC staff apply a Management Variable to explain the mismatch.

Going the other direction is faster. A single serious infraction — fighting, contraband, assault on staff — can trigger an immediate score increase and a move to more restrictive housing. The practical advice is almost boringly simple: avoid incidents, participate in programming, and let time do its work on the age variable.

Earned Time Credits and the PATTERN Score

The First Step Act of 2018 created a second risk assessment that runs alongside traditional classification but serves a different purpose. The PATTERN tool (Prisoner Assessment Tool Targeting Estimated Risk and Needs) predicts your likelihood of reoffending after release, not your risk of misconduct while incarcerated. You can be classified low security under the traditional system while scoring as high recidivism risk under PATTERN, or the opposite.⁷

The payoff is earned time credits. Every eligible person who participates in evidence-based programming or productive activities earns 10 days of credits for every 30 days of successful participation. If you’re assessed as minimum or low recidivism risk on two consecutive PATTERN assessments without an increase, the rate jumps to 15 days per 30.⁸ These credits apply toward earlier transfer to prerelease custody or supervised release.

Separately, good conduct time allows qualifying inmates to earn up to 54 days off their sentence for each year imposed by the court.⁹ Combined with earned time credits, consistent program participation creates a real path toward earlier release.

Challenging Your Classification

If you believe your security level or custody classification is wrong — a miscalculated score, an incorrectly applied Public Safety Factor, a failure to credit completed programming — the BOP has a formal grievance process you must use before any court will hear your complaint.

Start informally with your counselor or unit team. If that doesn’t resolve it, file an Administrative Remedy Request on form BP-9 within 20 calendar days of the event you’re challenging. The warden has 20 days to respond.¹⁰

If the warden denies the request, appeal to the Regional Director on form BP-10 within 20 calendar days of the warden’s response. The Regional Director has 30 days. If that also fails, a final appeal goes to the BOP General Counsel on form BP-11 within 30 calendar days. The General Counsel has 40 days. No response within the time limit at any level can be treated as a denial, letting you move to the next step.

This three-step process is not optional. Under the Prison Litigation Reform Act, no federal lawsuit challenging prison conditions can proceed until you’ve exhausted every available administrative remedy.¹¹ The Supreme Court has interpreted that to mean “proper exhaustion,” which requires following every deadline and procedural rule rather than just going through the motions.¹² Missing a filing deadline can permanently bar you from raising the issue in court, even on a meritorious claim. Keep copies of every form, document the dates, and track the deadlines.

A Note on State Systems

Everything above describes federal custody. State correctional departments operate their own classification frameworks and they vary considerably. Many states use a tiered structure from minimum to maximum, sometimes labeled numerically (Level I through Level V) and sometimes by name. The physical features follow the general pattern — open campuses with dormitories at the low end, reinforced perimeters with cells at the high end — but the scoring instruments, specific criteria, and review timelines differ by state. Some states add variables the federal system doesn’t emphasize, such as state-specific gang intelligence or local detainer status. Administrative remedy procedures also differ: some states require a single-level grievance before judicial review, others mirror the federal multi-step appeals structure. If you’re in state custody, the most reliable source is your state department of corrections, which typically publishes its classification manual or policy directives online.

1
Federal Bureau of Prisons. Program Statement 5100.08 – Inmate Security Designation and Custody Classification
2
Federal Bureau of Prisons. Program Statement 5100.08 – Inmate Security Designation and Custody Classification
3
Federal Bureau of Prisons. Program Statement 5100.08 – Inmate Security Designation and Custody Classification
4
Federal Bureau of Prisons. Form BP-S338.051 – Custody Classification
5
Federal Bureau of Prisons. Care Level Classification for Medical and Mental Health Conditions or Disabilities
6
Federal Bureau of Prisons. Care Level Classification for Medical Conditions or Disabilities
7
U.S. Department of Justice. The First Step Act of 2018: Risk and Needs Assessment System
8
Office of the Law Revision Counsel. 18 USC 3632 – Development and Use of Risk and Needs Assessment System
9
Federal Bureau of Prisons. First Step Act, Frequently Asked Questions
10
eCFR. 28 CFR Part 542 – Administrative Remedy
11
Office of the Law Revision Counsel. 42 USC 1997e – Suits by Prisoners
12
Cornell Law School. Woodford v. Ngo