Development of the classification plan grew out of the Ruiz v. Lynaugh case where questions were raised regarding the safety and proper housing of TDC's approximately 39,000 inmates. The plan was intended to make explicit the criteria for custody level determination and thus minimize arbitrary and inappropriate housing and unit transfer decisions. Findings indicate that, compared to other State prison systems, the TDC classification system places a large proportion (nearly 70 percent) of its inmate population in minimum custody. The system attempts to place inmates in the least restrictive environment and uses the inmate's in-custody behavior as the primary determinant of custody level. The large percentage of inmates classified for minimum custody by TDC is justified and appropriate based on criteria used to place such inmates. This investigation also revealed that TDC classification policies and procedures are being followed according to the Classification Plan. 17 tables, 4 references, appendix.