How to Verify a Federal Inmate's Facility Before You Write

This workflow applies only to people in Federal Bureau of Prisons custody. State prisons, county jails, immigration detention, and other systems use different authorities and are outside this guide. For a federal match, separate three questions: which BOP record matches the person, what facility the locator displays, and what inmate-mail block that facility currently publishes. ^[1],[2]

Collect enough information to avoid a false match

The federal locator accepts a BOP register number or one of several other federal identification numbers and also offers a name search. When the full register number is available, use it first and compare the displayed name and other details rather than selecting a similar name result. ^[1]

The BOP locator covers people incarcerated federally from 1982 to the present. It warns that release dates may not be current during sentence reviews and recalculations, so a date displayed there should be treated as current agency information rather than a permanent promise. ^[1]

Read the status before copying the location

A result may display a facility, a release status, or indicate that someone is not in BOP custody. The BOP says a person listed as released or not in its custody may remain under another authority. Do not convert that status into an address guess. ^[1]

The locator says a person shown as released or not in BOP custody may still be under another correctional, criminal-justice, law-enforcement, parole, or supervised-release authority. Identify the responsible custody system before looking for a mail destination instead of treating a federal result as a state or local address. ^[1]

Use a repeatable verification sequence

1. The locator supports number and name searches. Compare the profile or prior letter with the full name and available identifying number rather than selecting a similar name alone. ^[1]
2. Record the status and facility exactly as the locator displays them, together with the date you performed the search. Dating the note is an LTTR recordkeeping recommendation; the locator itself warns visitors to check back periodically for release-date changes. ^[1]
3. Open the current official page for the facility shown by the locator and find its inmate-mail section. The FCI Aliceville page, for example, publishes its own correspondence address rather than asking senders to derive one from the national locator. ^[2]
4. Copy each element the current facility page supplies. Aliceville’s inmate-mail block shows placeholder fields for inmate name and register number, facility routing, post-office box, city, state, and ZIP Code, while its satellite-camp block includes an additional routing line. ^[2]
5. The locator tells visitors to check back periodically because release information can change. Recheck immediately before mailing when your result is old, a transfer was reported, or details conflict. ^[1]
6. As an LTTR recordkeeping step, save the copied inmate-mail block with the facility-page URL and check date. This preserves the provenance of the format and helps prevent a later profile note from being mistaken for an official routing instruction. ^[2]

Treat the locator as evidence, not a mailing manual

The locator supplies federal custody information and a displayed location; the Aliceville page separately supplies its facility-specific inmate-mail block. Reading those sources together shows why a locator result should not be treated as a complete mailing manual. ^[1],[2]

The Aliceville page explicitly says not to send inmate money to the facility’s inmate-mail address and directs funds to a separate processing center. That is a facility example, not a rule about every custody system, but it shows why the address should be confirmed as an inmate-mail destination. ^[2]

For a guided walkthrough, use the site’s inmate verification process. When you return to meet an inmate, retain both pieces of evidence: the dated locator result and the current official facility mail block. ^[1],[2]

Resolve mismatches instead of filling the gaps yourself

When a profile and locator result disagree, first check spelling and the complete identifying number. If the difference remains, pause until you can match the person to an official custody result and then obtain the inmate-mail block from that result’s current facility page. ^[1],[2]

Because the locator covers federal records from 1982 forward and says a person outside BOP custody may be under another authority, not finding a federal result does not by itself prove a profile false. Check the inputs and then the appropriate official system when available information points elsewhere. ^[1]

Verify again when circumstances change

Repeat the check after a stated transfer, returned mail, an extended communication gap, or a changed custody status. This is an LTTR precaution grounded in the locator’s warning that information can change and in the facility page’s role as the source of the address you will actually copy. ^[1],[2]

BOP Program Statement 5265.14 says incoming general correspondence is inspected for contraband and may be read as needed for security or monitoring. That policy describes processing, while the facility page supplies the destination. Check both rather than expecting one page to answer every mail question. ^[3],[2]

A final pre-mail check

• The full name and register number copied to the envelope match the official locator result and appear in the positions shown by the current facility mail block. ^[1],[2]
• The facility on the envelope matches the current official location rather than an older directory or correspondence entry. ^[1]
• Every address line follows the current institution instructions, with no extra nickname or unverified routing information added. ^[2]
• You understand that ordinary federal correspondence may be inspected and have written with that privacy limitation in mind. ^[3]

Verification is a point-in-time practice. The federal check matches the person and displayed facility through the locator, copies the facility’s current inmate-mail block, and reads the federal correspondence policy for processing limits without treating any one source as a guarantee of delivery. ^[1],[2],[3]