The Court Services and Offender Supervision Agency is a federal agency mandated to supervise adults on probation, parole, and supervised release in the District of Columbia. The Court Services and Offender Supervision Agency (CSOSA) is a federal agency mandated to supervise adults on probation, parole, and supervised release in the District of Columbia. Our Mission: To enhance public safety by effectively managing people under community supervision, and to collaborate with community and justice partners to support the reintegration of those supervised. (202) 220-5300, Ext. 7233
Illegal Substance Collection Unit
Monday–Tuesday: 8 a.m.–12 p.m. & 1–4:30 p.m. Thursday–Friday: 8 a.m.–12 p.m. & 1–4:30 p.m. (202) 220-5300, Ext. 7220
GPS Unit
Monday–Friday: 9 a.m.–12 p.m. & 1–4 p.m. (202) 220-5300, Ext. 7345
S*x Offender Registry
Monday–Friday: 8:30 a.m.–5 p.m. (202) 220-5300, Ext. 7348
CSOSA was created by Congress through the National Capital Revitalization and Self-Government Improvement Act of 1997. After an initial period of trusteeship, CSOSA was certified as an independent Executive Branch agency in August 2000.