What the words mean.

Handles your paperwork life: custody scoring, halfway house/RRC dates, FSA credits, furlough, transfers. The signature that moves your release date. Hard to get time with, most worth it.

In a sentence: "My case manager still hasn't updated my halfway house date."

Runs religious services, and also delivers death and emergency notifications to inmates. If someone dies in the family, the outside contacts the chaplain.

In a sentence: "Their grandmother passed, so the chaplain called them down."

aka cop, corrections officer, correctional officer

Uniformed staff who run the unit floor and do count. "CO" and "cop" are used interchangeably inside.

In a sentence: "The CO on the floor made us re-rack for count."

The staff member on call after hours. For families, sometimes the only person reachable in an emergency.

In a sentence: "Call the prison and ask for the duty officer — it's an emergency."

aka the LT, LT

Shift supervisors above the COs. When something real happens — a fight, a SHU trip, an investigation — the LT shows up.

In a sentence: "Once the LT got involved, they walked my celly to the SHU."

aka inmate, defendant

The inmate, referred to by their people on the outside.

In a sentence: "My loved one is in the SHU again like an idiot."

An inmate work assignment — cleaning the unit, chow hall, etc. The most common first job.

In a sentence: "They started me as a unit orderly making twelve cents an hour."

aka physician's assistant, medical

Who you actually see for health issues. Not a fast system. Learn it early.

In a sentence: "I put in for sick call but haven't seen the PA yet."

aka representative, driver

The person who speaks for a car and handles its business with other groups and, informally, with the wider unit. Lower-key than a shot caller — more spokesman and organizer than boss. Softer in camps and lows, more defined as security rises.

In a sentence: "If you've got a problem with someone, you talk to the rep, not them."

An inmate who runs a car. Inmate politics, not staff structure. Soft in camps and lows, more real as security goes up.

In a sentence: "You want the TV changed, you ask the shot caller, not the CO."

aka Special Investigative Services

The prison's internal investigators. They monitor mail and TRULINCS for anything flagged. If SIS is looking at you, it's serious.

In a sentence: "Word is SIS pulled their emails, so they're sweating it."

aka counselor

Front-line staff for daily stuff: visiting list, phone list, commissary issues, job assignments. First stop for most problems.

In a sentence: "Go see your counselor to get her added to your phone list."

The boss of your unit. Escalate here when the case manager and counselor can't or won't help.

In a sentence: "Counselor won't budge, so I'm taking it to the unit manager."

The staff who control your day-to-day life: case manager, counselor, and unit manager. "Take it to your team" means these people.

In a sentence: "That's a team question — put in a cop-out and ask them."

aka celly, cellmate

Your bunkmate or cellmate. "Celly" at higher security, "bunkie" in open dorms.

In a sentence: "My bunkie snores, so I'm barely sleeping."

Your group, usually organized by geography ("the Chicago car"), race, or affiliation. New arrivals get pulled into a car and told the unspoken rules. In camps it's mostly social/logistics; higher up it's more serious.

In a sentence: "They rolled in from Detroit, so they're in the Michigan car."

aka checked in

Someone who requested protective custody (checked into the SHU) to get away from a threat or a debt. Carries heavy stigma in general population.

In a sentence: "They owed on a gambling debt and ended up checking in."

aka FNG

A newcomer. You'll be one.

In a sentence: "Go easy on them, they're a fish — got here yesterday."

aka on the yard

Doing time where gang/car politics run daily life. Less true at camps, more true as security rises.

In a sentence: "The pen was real gang time — this camp is nothing like it."

Just about anything and everything that has your name on it related to your case and previous cases, including state. This is commonly checked to ensure that one is not a snitch or an SO.

In a sentence: "New arrival wouldn't show their paperwork, so nobody trusts them."

aka mexican, pisca

Translates to countryman, but used to define the car for those from predominately Spanish-speaking countries.

In a sentence: "The pisanos run the microwave on that side of the unit."

aka SO, chomo

People convicted of sex offenses. In inmate culture they occupy the bottom of the social order and are frequently targeted. Terminology varies by facility. This is inmate social reality, not staff policy.

In a sentence: "Word got around about their charge and now nobody sits with them."

aka solid white boy

A reliable person who follows inmate etiquette. "They're solid" is a compliment. "Solid white boy" attaches a racial grouping — inside, groups sort along racial lines more than people expect.

In a sentence: "Don't worry about them, they're solid."

aka chow

The cafeteria. "Chow" is also the meal itself. Run by the clock and by count.

In a sentence: "Meet me at chow, they're serving the good chicken."

The store. Food, hygiene, shoes, a radio, stamps — bought with money loaded to your account. Most of your quality of life inside.

In a sentence: "I blew my whole commissary limit on coffee and mackerel."

The physical grounds of the facility. "Town driver" work details at camps can run off the immediate compound.

In a sentence: "The whole compound's locked down after what happened at rec."

aka Receiving & Discharge

Where you're processed in and out. "They're in R&D" means movement is happening.

In a sentence: "They're down in R&D — looks like they're finally transferring."

aka halfway house, Residential Reentry Center

Where many people finish a sentence before full release. Your case manager sets the date, and it isn't guaranteed.

In a sentence: "My case manager put me in for six months at the RRC."

Going to commissary. You get a spending limit and a shopping day tied to your unit.

In a sentence: "Tuesday's my shopping day, tell me if you need anything."

aka the shoe, segregation, the hole

Solitary. Where you go for a disciplinary issue, an investigation, or protective custody.

In a sentence: "They rolled up my celly and took them to the SHU last night."

Outdoor rec area, and also shorthand for the whole compound ("on the yard").

In a sentence: "I'll catch you on the yard after count."

Being moved between facilities via slow, punitive transfers, sometimes weeks in on a bus. Rare but real, and terrifying for families who lose contact during it.

In a sentence: "They've been in transit for three weeks, we haven't heard a word."

Medical costs money inside. A small fee per sick-call visit comes out of the trust account. Families are always surprised.

In a sentence: "They hit me with a copay just for asking about my knee."

The outside half of TRULINCS. The site/app you on the outside use to message someone inside. You accept an invite through CorrLinks first.

In a sentence: "Accept my CorrLinks invite so I can actually write you."

aka TRULINCS message

Not real email. Text-only messages through TRULINCS, monitored, sometimes delayed by hours, only with pre-approved contacts. No links, no attachments.

In a sentence: "Send me an email — remember it's monitored, keep it clean."

aka MoneyGram, Western Union

How families actually put money on an account. Genuinely simple — consultants overcomplicate it to sound useful.

In a sentence: "Just send a Green dot, it hits my account in an hour."

Physical letters and photos, opened and screened by staff. Slow but reliable, and the thing people inside look forward to most. Rules on what you can send vary by facility.

In a sentence: "Best part of my day is when mail call hits."

aka phone PIN

Inmate phone access is a monthly minute allowance paid from the account, dialed to pre-approved numbers, and monitored.

In a sentence: "I'm almost out of minutes, so I'll call you Sunday."

The unofficial currency. Books of stamps get traded for goods and services because cash isn't allowed. "Stamp rate" is the going price of things in stamps.

In a sentence: "They ironed my shirts for two stamps."

The inmate computer system: email, phone, and account access in one. Everything on it is monitored and recorded.

In a sentence: "I'll message you on TRULINCS once I'm off restriction."

The BOP's banking system. Holds the money on your account (family deposits or prison job pay) that you spend at commissary and on phone/email.

In a sentence: "Have them send it to my trust fund, not the old address."

aka location monitoring, GPS monitor

The tech reality of home confinement: what it does, what it doesn't, and what sets it off.

In a sentence: "I can't be out past nine or the ankle monitor flags it."

aka Bureau of Prisons

The federal agency that runs the whole thing.

In a sentence: "The BOP transferred them without telling the family."

aka reduction in sentence, RIS

The rare early-release path for extraordinary circumstances. Asked about far more than it's granted — set expectations honestly.

In a sentence: "Their lawyer filed for compassionate release, but it's a long shot."

aka travel approval

The rules during supervised release, including needing permission to travel. Almost nobody explains the travel-approval process in advance.

In a sentence: "Leaving the district's against my conditions without approval."

Which facility the BOP assigns you to. Nobody can guarantee a specific placement — anyone selling you that is lying.

In a sentence: "We're still waiting on their designation to know where they're going."

A hold placed by another jurisdiction (state, ICE, another federal district). Can block halfway house and change how a sentence ends. Big impact, poorly understood.

In a sentence: "They've got a state detainer, so no halfway house for them."

aka FSA, the First Step Act

The 2018 federal law that reshaped a lot of how sentences actually end. Its biggest day-to-day impact is FSA credits — time earned through programming that moves up your release or halfway house — but it also expanded compassionate release and changed some sentencing rules. When people say "FSA," they usually mean the credits; this is the law they come from.

In a sentence: "They qualify under the First Step Act, so they're earning credits toward the door."

aka First Step Act credits

Time credits earned through programming, applied toward earlier release or halfway house.

In a sentence: "My FSA credits knocked more time off than I expected."

A temporary authorized absence from the facility. Rare, tightly controlled, and not something to count on.

In a sentence: "Don't count on a furlough, almost nobody gets one."

aka GCT, good time

Days off your sentence for not getting in trouble. People wildly miscalculate release dates — how GCT and FSA stack is worth getting right.

In a sentence: "With good time I'm out about seven weeks early."

aka house arrest

Finishing a sentence at home under monitoring. Distinct from supervised release, and people conflate the two constantly.

In a sentence: "I finished the last four months on home confinement."

aka sealed case

The public federal court records system. A plain note on what's public and what's sealed helps families searching for a case avoid getting scared or scammed.

In a sentence: "You can pull their case on PACER unless it's sealed."

Doesn't exist in the modern federal system. If a consultant implies they can get someone "paroled," that's a tell they don't know federal from state.

In a sentence: "There's no parole in the feds — that's a state thing."

The BOP's risk score that affects your FSA credits and programming eligibility.

In a sentence: "My PATTERN score dropped to low, so I qualify for more."

aka PO, U.S. Probation

Who supervises you during supervised release. A different agency from the BOP entirely.

In a sentence: "I have to clear it with my PO before I travel."

The BOP's own written policy on a topic. Translating these into human is the whole point of this site.

In a sentence: "The program statement actually says otherwise — read it."

aka PSI, presentence report

The presentence report. Follows you the whole sentence and shapes your custody score, programming, and treatment inside.

In a sentence: "Whatever's in your PSR follows you the whole bid."

aka Residential Drug Abuse Program

A roughly 9-month program that can take up to a year off a sentence if you qualify.

In a sentence: "I got into RDAP — it's nine months but takes a year off."

Reporting to prison on your own on a set date instead of being taken into custody. Common for nonviolent first-timers.

In a sentence: "They get to self-surrender in March instead of being cuffed at court."

aka bid

The maximum duration of an individual's term of imprisonment.

In a sentence: "How long is your sentence?"

What comes after the sentence: a term under a probation officer with conditions. Not parole — federal parole basically doesn't exist anymore, which confuses everyone.

In a sentence: "I'm done with the sentence but I've got three years of supervised release."

aka Federal Prison Industries

The prison work program that pays better than regular jobs. Competitive to get into.

In a sentence: "I finally got a UNICOR spot, it pays way better than the kitchen."

aka revocation

Breaking a supervised-release condition can send you back. Worth demystifying calmly rather than dramatically.

In a sentence: "A dirty test would be a violation and I'd go back."

aka Admission & Orientation

Your first days: paperwork, medical intake, the rules briefing. Disorienting and slow. Families won't hear much during this window — that's normal.

In a sentence: "I'm still in A&O so I don't have a job or a phone yet."

aka callout sheet

The daily printed schedule of where you're required to be — medical, education, team meetings. You check it every day; missing a callout is a problem.

In a sentence: "I'm on the callout for medical at 8, can't miss it."

aka move

Movement between areas only happens during scheduled windows, often ten minutes on the hour. You can't just walk somewhere. This is why everything feels slow.

In a sentence: "It's controlled movement, so I've got ten minutes on the hour."

Head counts several times a day at fixed times. Everything stops and you stand at your bunk. Miss it or move during it and it's a disciplinary problem. Nights and weekends have their own schedule.

In a sentence: "Can't move, it's count — I'll call you after it clears."

aka two-hour rule

Movement is frozen until a count is verified. This is why you sometimes can't reach someone for hours — it's not a bad sign.

In a sentence: "Once count clears I'll head to the phones."

aka duce head, crackhead

Slang for someone strung out, usually on K2. Terminology varies by region and facility.

In a sentence: "They're a duce now, spend everything they've got on K2."

aka spice

Synthetic cannabinoid sprayed on paper, smuggled and smoked inside. Unpredictable and dangerous; a common cause of medical emergencies and lockdowns.

In a sentence: "Ambulance came again — somebody smoked K2 in the bathroom."

Everyone confined to units, movement stopped. Can be routine, or triggered by an incident anywhere on the compound.

In a sentence: "We've been on lockdown for three days, no visits."

The main meal service, and the informal window when staff — including the warden — are supposed to be in the chow hall to hear complaints.

In a sentence: "Catch the warden at mainline if you want to complain."

aka rec call

Recreation time and the announcement that opens it.

In a sentence: "They just called rec, I'm gonna go walk the track."

aka hooch

A spread is a shared meal built from commissary items — how people socialize and mark occasions inside. Hooch is improvised alcohol, which is contraband.

In a sentence: "We made a spread for their release — mackerel, rice, and chips."

aka Discipline Hearing Officer

Handles the serious shots and can take good conduct time. Families should know this exists because it can move a release date.

In a sentence: "It got serious, so it's going to the DHO — that could cost me good time."

aka Con-Air, BOP transport

The federal transfer system that moves people between facilities. When someone "goes dark" for a stretch, this is usually why.

In a sentence: "They got put on JPATS, so they could be anywhere for a month."

aka incident report

A disciplinary write-up. Can cost you privileges, commissary, or good conduct time depending on severity. Numbered by code, and it moves through a hearing process.

In a sentence: "I caught a shot for having an extra shirt in my locker."

aka Unit Disciplinary Committee

The unit-level hearing for lower-severity shots. Handles minor incident reports before they'd ever reach the DHO.

In a sentence: "UDC took my commissary for a week over that shot."