Southern Maryland Pre-Release Unit

The Southern Maryland Pre-Release Unit is a low-custody level facility located in Charlotte Hall, Maryland, that houses adult male inmates who are preparing to be released back into society. It houses approximately 165 inmates who participate in pre-release programming and work release, which allows them to work outside prison walls during the day.

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Southern Maryland Pre-Release Unit

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Visiting Hours and Rules

Visiting hours at Southern Maryland Pre-Release Unit are:

  • Monday and Friday Evenings from 7:00 p.m. to 9:00 p.m.
  • Saturday and Sunday mornings from 9:00 a.m. to 11:00 a.m.

Duration:  No time limit unless space availability is limited.

General Visiting Rules

Visitors (16 years of age and older) must have a photo ID.

Children (18 years of age and younger) visiting the inmate must be immediate family to either the inmate or visitor and must be accompanied by a person 18 years of age or older who is on the inmate's visiting list.

Dress Code

All visitors, including children, must dress appropriately for visitation.  All clothing must cover you from the neck to the kneecaps.

The following types of clothing are not allowed to be worn:

  • tube tops, tank tops, or halter tops
  • see-through clothing
  • mini-skirts, mini-dresses, shorts, skorts, or culottes (at or above the kneecap)
  • form-fitting clothes such as leotards, spandex, and leggings
  • clothes that expose a person's midriff, side, or back
  • tops or dresses that have revealing necklines and/or excessive splits
  • coats, jackets, shawls, and scarves will be placed in an appropriate area (Exceptions will be made for religious headdress)
  • shower shoes or flip flops

Physical Address

Southern Maryland Pre-Release Unit
14320 Oaks Road
Charlotte Hall, Maryland 20622

Driving Directions: https://goo.gl/maps/4Dk8rAr6Cp2GgqqJA

General Phone Number

​(301) 274-4701

Inmate Mailing Address(es)

Inmate Name and DOC Number
Southern Maryland Pre-Release Unit
14320 Oaks Road
Charlotte Hall, Maryland 20622

How to Call an Inmate

You can’t call an inmate at the Southern Maryland Pre-Release Unit, but they do have access to phones and are allowed to make monitored outgoing calls during approved hours. For complete details on how to call an inmate in Maryland, please click here.

How to Send Money

Southern Maryland Pre-Release Unit uses a Lockbox system for friends and family members to send money to their incarcerated loved one. The Lockbox is a service provided by a bank where money orders received at the designated P.O. Box are picked up and delivered to the bank responsible for processing and depositing the incoming Money Orders sent to inmates.


The Department of Public Safety and Correctional Services–Division of Correction only accepts Money Orders. NOTE: Cashier Checks, Personal Checks, Official Checks, Bill Pay Checks, Bank Checks, Non-Electronic Transfers, and Non-US Currency Checks/Money Orders will not be accepted.

You must include the following info on the money order:

  • The Inmate’s Name, Institution, and Inmate SID # (State Identification Number).
  • Sender’s Name and Address.

Please use Black or Blue Ink pen only on the money orders and neatly PRINT the required information.

Money Orders should be made payable to the Inmate (Full Committed Name; no AKA’s, etc) and sent to:

Inmate Name, DOC Number
Southern Maryland Pre-Release Unit
P.O. Box 17111
Baltimore, MD 21297-0382

Programs For Inmates

The inmates at Southern Maryland Pre-Release Unit participate in the restorative justice program known as Public Safety Works (PSW), which provides employment skills as well as an opportunity for offenders to give back to the community.

PSW is also a bridge to meaningful employment, helping develop basic everyday skills needed to be an effective employee such as learning to respect a supervisor and working as a team. 

Inmates are also part of the work release program, which allows them to work outside of the prison during the day for different state organizations or businesses.

Pictures of Southern Maryland Pre-Release Unit

Careers at Southern Maryland Pre-Release Unit

If you are interested in a career with the Maryland Department of Public Safety and Correctional Services at the Southern Maryland Pre-Release Unit, you can find job listings by clicking here. If you are interested in a career as a correctional officer, click here for more information.

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