This monograph on Comprehensive Employment and Training Act (CETA) program models for practitioners who are implementing or redesigning public service employment programs explores three major approaches to public service employment: countercyclical, employability development, and structural targeting. The content is presented in six sections. The first briefly presents the historical development of public service employment while section 2 presents a typology of public service employment involving three dimensions: objectives, target groups, and employment opportunity. Each of the next three sections discusses these three dimensions in relation to one model for approaching public service employment. The three models covered are the countercyclical model (create jobs in the public sector), the employability development model (provide job training), and the structural targeting model (select a target group and deal specifically with their unemployment problems). The last section briefly discusses some unresolved public service employment issues. (EM)