This monograph describes a proposed program called the Job Security System (JSS), which would integrate the various public programs designed to help experienced unemployed workers find work. A justification for JSS and its general design are presented in the introduction, followed by a description of such potential JSS clientele as previously employed unemployed workers (workers on temporary layoff, job losers, job leavers), unemployed workers not previously employed (reentrants, new entrants), and underemployed workers (workers on temporarily reduced work schedules, workers seeking other employment). Discussed next is the proposed treatment of these clientele categories. Various JSS employment services, including placement, labor market information, diagnostic and counseling, training and vocational adjustment, and job creation and subsidized employment services are outlined. Then a three-tier unemployment insurance program and an unemployment assistance program are proposed and analyzed with respect to program design, administration, cost, and impact. A brief summary and series of concluding observations follow. (MN)