The general maintenance positions filled by most people in prison or jail are less likely than jobs in prison industries to provide participants with marketable skills that will lead to successful careers. The jobs that are believed to be most effective at providing skills are those that produce goods and services that are sold in the commercial market. But only a small percentage of prisoners can participate in such work due to a limited number of slots. For example, the Prison Industry Enhancement (PIE) program, which operates in 572 state (482), federal (68), and private (22) facilities, includes partnerships with private companies to provide jobs for people in prison or jail. ^[1]   However, the PIE programs provide space for only about three-tenths of one percent of the state prison population.