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MIM(Prisons) is a cell of revolutionaries serving the oppressed masses inside U.$. prisons, guided by the communist ideology of Marxism-Leninism-Maoism.
[About Us]
Campaigns
- We Demand Our Grievances are Addressed! (5/13/2025)
- Build a United Front for Peace in Prisons (4/28/2025)
- End Security Risk Group Repression in North Carolina (4/08/2025)
- Prison Banned Books Week (4/05/2025)
- We Demand Our Grievances are Addressed in Pennsylvania (2/10/2025)
Recent Posts
- A Poem about Intentional Infliction of Emotional Distress
- Against Settler Revisionism: Freedom Road Socialist Organization
- Lumpen and Religious Orgs Used to Control Prisoners in Texas
- "Stop Snitching" Response: Part II
- Downloadable Grievance Petition - Federal Appeal
Censorship
- Snake River Correctional Institution in OR (4/18/25)
- Southern State Correctional Facility in VT (4/10/25)
- Southern State Correctional Facility in VT (4/10/25)
- Cummins Unit in AR (4/1/25)
- Rikers Island (RMSC) in NY (3/30/25)















To help people support U.S. prisoners in their daily struggles our website provides mailing addresses for prisoner mail, mail rules by state and facility, histories of censorship problems at each facility, information on which prisons have Control Units, prison population data and prisoner-led campaigns to improve conditions on the inside. (click state in list below)




























































Puerto Rico Prisons
Puerto Rico Prison Population: 0Locate a Puerto Rico Prisoner: no locator available
Puerto Rico Prison Mail Rules: none available
Puerto Rico Facility Listing
Facility | Mailing Addresses | Facility Rules | Records of Censorship | Prisoner Reports | Control Units |