As required by the Carl D. Perkins Vocational Education Act of 1984, the Illinois Council on Vocational Education conducted its first biennial study of the types and amounts of cooperation between vocational education (VE) and Job Training Partnership Act (JTPA) programs in the state. Data were collected from high schools, area vocational centers, secondary school adult programs, community colleges, regional planning grant directors, Service Delivery Area (SDA) staff, and Private Industry Council (PIC) members. Some of the findings were as follows: (1) communication (and therefore cooperation) is minimal between most SDAs and most vocational education staff; (2) other barriers to cooperation between SDA staff and educators include educator resistance to SDA methods for certifying youths as economically deprived, educator fears of JTPA contract requirements, and low priorities set for SDA-vocational education contacts; (3) there is more cooperation between vocational education and SDA programs for youth than for adults; (4) there is more cooperation between JTPA and area vocational centers and community colleges than between JTPA and comprehensive high schools; and (5) SDAs and schools often charge each other for data from their files. Recommendations are made to increase communication among parties, to establish professional training for JTPA staff, and to revise youth eligibility certification procedures, among others. (KC)