Description of Facility
California Substance Abuse Treatment Facility and State Prison houses minimum all the way to maximum security inmates. This is an all male facility and has the capacity to house up to 3,424 offenders.
California Substance Abuse Treatment Facility is comprised of four complexes, each complex has two facilities. Complex I houses level II inmates in facilities A (sensitive needs yard) and B (general population) in a dormitory setting. Complex II contains central services and Facility C (level IV maximum security general population). Complex III contains facilities D (level IV maximum security) and E (level III sensitive needs).
Inmates at Substance Abuse Treatment Facility and State Prison are allowed the following through the mail:
As of January 1, 2023 all calls made by inmates are free of charge.
To send money to an inmate incarcerated in California you will need their current location and their CDCR number.
Find an inmate's CDCR number, current location, and sentencing information by searching the 
You must have an approved visitors application on file before you can attend a visit. You must request from the inmate CDCR Form 106. This is the California Visiting Questionnaire form and it must be signed by the inmate before you can fill it out and send it back to the facility at the inmate mailing address and add: "Attention: Visiting".
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