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California Institution for Men: A Comprehensive Guide

The California Institution for Men (CIM) is a state prison located in Chino, California. It is the largest correctional facility in the state of California and houses over 3,900 inmates. In this article, we will provide a comprehensive guide to the California Institution for Men, including its history, facilities, programs, and inmate life.

Visiting California Institution for Men

Visiting Hours

For families and loved ones of inmates, visiting hours at the California Institution for Men are on Saturdays and Sundays, from 8:30 am to 3:00 pm. It’s important to note that visitors arriving after 2 pm may not be allowed to visit for the day. Visitors can conveniently park in the designated parking lot and enter the visitation area directly; there’s no need to wait in their vehicles. Each visitation session lasts one hour. To streamline the process, the California Department of Corrections now allows visitors to schedule appointments online.

Contact Information

Physical Address

Should you need to visit the California Institution for Men in person, its physical address is as follows:

California Correctional Institution for Men 14901 Central Avenue Chino, CA 91710


You can reach out to the institution via phone at (909) 597-1821 for any inquiries or concerns.

Inmate Mailing Addresses

If you wish to correspond with inmates at CIM, make sure to use the correct mailing addresses:

  • CIM I P.O. Box 600 Chino, CA 91708
  • CIM II P.O. Box 368 Chino, CA 91708
  • Reception Center Central P.O. Box 441 Chino, CA 91708
  • Reception Center East P.O. Box 500 Chino, CA 91708
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History of CIM

CIM was established in 1941 as a medium-security prison and was originally known as the Chino Institute for Men. Over the years, it has expanded and now includes minimum, medium, and maximum-security facilities. CIM has had a controversial history, with reports of violence, riots, and poor living conditions. However, in recent years, the facility has undergone significant changes to improve the living conditions and reduce violence.

Facilities at CIM

CIM has a range of facilities to cater to the different security levels of its inmates. The facility includes a medical center, dental clinic, gymnasium, vocational education classrooms, and a visiting center for family members. The prison also has a separate unit for inmates with mental health needs.

Programs at CIM

CIM offers a range of programs to its inmates, including educational and vocational training, substance abuse treatment, and mental health services. Inmates can participate in academic classes, vocational training programs, and apprenticeships to learn skills that will help them find employment upon release. The prison also offers a range of support programs to help inmates address substance abuse and mental health issues.

Inmate Life at CIM

Inmate life at CIM is highly structured and regulated. Inmates are required to adhere to strict schedules and rules and are subject to frequent searches and inspections. The facility has a range of recreational activities, including sports teams, hobby shops, and a music program. Inmates are also allowed to receive visits from family members and friends.


The California Institution for Men is a significant correctional facility in the state of California, housing thousands of inmates of various security levels. The prison has a controversial history but has undergone significant changes in recent years to improve living conditions and reduce violence. CIM offers a range of programs and facilities to support inmate rehabilitation and reintegration into society.

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  1. Can inmates at CIM receive visitors? Yes, inmates at CIM can receive visits from family members and friends. Visits are subject to strict rules and regulations.
  2. What types of vocational training programs are offered at CIM? CIM offers a range of vocational training programs, including carpentry, plumbing, and welding.
  3. What recreational activities are available for inmates at CIM? Inmates at CIM can participate in a range of recreational activities, including sports teams, hobby shops, and a music program.
  4. How are inmates with mental health needs cared for at CIM? CIM has a separate unit for inmates with mental health needs and provides a range of mental health services to its inmates.
  5. What is the purpose of the California Institution for Men? The California Institution for Men is a state correctional facility that aims to house and rehabilitate inmates and prepare them for reintegration into society.

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