"Federal Prison" is in the actual name of the Texas facility.
They all say federal prison.
But in the case of Texas it's
minimum security
Before Maxwell was in
low security the minimum for sex offenders.
Federal prisons are classified into five security levels:
minimum, low, medium, high, and administrative. These classifications are based on factors like the presence of security barriers, staff-to-inmate ratio, and the type of housing. Some facilities with different security levels located together are called federal correctional complexes.
Minimum security
Features: Dormitory housing, limited or no perimeter fencing, and a low staff-to-inmate ratio.
Examples: Federal Prison Camps (FPCs).
Low security
Features: Double-fenced perimeters and mostly cubicle or dormitory-style housing.
Examples: Federal Correctional Institutions (FCIs).
Medium security
Features: Strengthened perimeters, often with double fences and electronic detection systems.
Housing: Mostly cell-based housing.
Examples: Medium-security FCIs and some United States Penitentiaries (USPs).
High security
Features: Highly secured perimeters, often with reinforced fences or walls.
Housing: More restricted, with multiple- and single-occupant cells.
Examples: Most United States Penitentiaries (USPs).