California felons are given a classification score based on several factors, including as length of prison term, prior incarceration behavior, and prior escapes. A high classification score results in a high-security level placement. Correctional institutions are also classified by security level. In most cases, inmates with higher classification scores are placed in higher security level institutions. Circumstances such as educational, work, or other administrative needs can result in the placement of inmates in institutions with different security levels and does not necessarily mean the inmate is inappropriately "out of level." The first table shows the number of male felon inmates (excluding civil narcotic addicts) in the California prison system. The number of inmates housed in each security level, the number of inmates in reception centers, and the number of inmates without classification scores are listed. Inmates on temporary release are included in the felon population. The second table presents information on the location of inmates by institution security level and inmate classification score. The third table contains statistics on the number of inmates housed in facilities with a security level different from the inmate's classification score and gives the reason for the exceptional placement. 3 tables