This study reviews admissions policies at Oklahoma state colleges and universities to ensure that implementation of admission standards is consistent with the policy's intent and to document the impact of policy on student success. The report covers the period fall 1989 (the year prior to the phase-in of higher admission standards) to fall 1998. Data were drawn from the Unitized Data System, the National Center for Education Statistics, and the Oklahoma State Department of Education. Among the study findings are the following: (1) from fall 1989 to fall 1998 enrollment increased 2.9 percent at comprehensive, state, and regional universities; and (2) the decrease in freshman enrollments directly from high school parallels the decline in the number of high school graduates. However, the percentage of high school graduates enrolling directly in the state system increased from 38.5 percent in fall 1989 to 42.8 percent in fall 1998. The report concludes that the data support continuation of current admission standards; that minority freshman enrollment and dropout rates are not being negatively impacted by the higher admissions standards; and that all students desiring to pursue higher education in the state have access through three entry routes: two-year colleges, regional universities, and comprehensive universities. Eighteen data tables are included. (SM)