Longitudinal enrollment data and policy information collected via three surveys between 1988 and 1990 of all states were used to profile the status of secondary school student participation in vocational programs in the United States. Participation was examined through analysis of high school and vocational enrollment trends between 1982-83 and 1989-90. These trends were then compared to changes in the states' educational policy to reveal any potential relationships between trends and policy. Data were analyzed for two primary groupings of states: those with increasing vocational enrollments (19 states) and those with decreasing enrollments (31 states). Fourteen states in the first group showed declines in overall high school enrollments. Clearly three-fourths of the second group showed much steeper declines in vocational education. An examination of policy implementation and programmatic reforms suggested that states evidencing stable or increased vocational enrollments were characterized by proactive attempts to reform or restructure vocational education. (The 25-page report is followed by extensive appendixes, including the state survey instrument and state by state enrollment data tables. These tables show high school and total vocational enrollments as well as vocational program teaching area enrollments. Appropriate percentage of change statistics are also provided.) (YLB)