California Rehabilitation Center (CRC) is a state prison located in Norco, Riverside County, California. There are about 3400 male inmates at CRC. It is designated a rehabilitation prison, but due to the overcrowding of Prisons in California, many are not there for rehabilitation. Narcotic commitments get an N number. Other inmates are assigned a commitment number based on whatever alphabet the system was on when the individual was committed. Those with N numbers do a rehabilitation program of usually approximately 9 months.