The development, implementation, impact assessment, and refinement of objective internal classification systems are examined. In addition to an executive summary, this report contains three chapters: introduction; description of the states' internal classification initiatives (Connecticut, Colorado, Washington, Oregon, Florida, New Jersey, South Dakota, and Missouri); and common problems, issues, and solutions. Appendixes include: Checklist for the Analysis of Life History of Adult Offenders (CALH) from MDOC; MDOC Correctional Adjustment Checklist; and IDOC Internal Classification Form for Maximum Security Facilities.