The data were collected for January 1, 1994 through December 31, 1994. Data pertain to prisoners who were admitted to prison, released from prison, or released from parole in 1994. Variables include incarceration history, current offenses, and total time served. Background information on individuals includes year of birth, sex, age, race, Hispanic origin, and educational attainment. The sampling included all persons incarcerated in State prisons in 39 States, the Federal prison system, the California Youth Authority, and the District of Columbia. The codebook and user guide are provided as a portable document format (PDF) file.