A study examined the effects of increased academic requirements for high school graduation on enrollment trends in public secondary vocational education programs in Washington since 1983. Vocational directors of 211 school districts that had increased graduation requirements since 1983 were surveyed through questionnaires. Results indicated that although high schools varied in the number of requirements for graduation, adequate time was available for taking vocational education subjects. Over 36 percent of the time remaining during the high school years could be devoted to elective options outside of the core requirements. Cross-crediting was evident in nearly 66 percent of the school districts. Where academic classes, enrollment, or expansion increased, 40 percent of the school districts also experienced decreases in vocational program enrollments. When enrollment did increase in both academic and vocational areas, more teachers were hired. However, hirings were in the proportion of three academic teachers to one vocational teacher. All academic areas had large increases in student enrollment. Business and office education showed an extremely high increase in student enrollment, but home and family life and agriculture had a decrease in course offerings. (The survey instrument and correspondence are appended.) (YLB)