High school transcripts and standardized college entrance examination test score results from approximately 6 percent of California's 1990 public high school graduates (n=13,641) were evaluated by University of California (UC) and California State University (CSU) college admissions officers as if they were records submitted by actual freshman applicants. Eligibility for college admission was defined as passing a proscribed series of college preparatory courses and meeting a minimum grade point average and minimum college entrance examination score. (UC also allows eligibility by test scores alone.) Results showed that eligibility rates among California public high school graduates have improved, with CSU eligibility rates changing from 27.5 percent in 1986 to 34.6 percent in 1990 and UC eligibility rates increasing from 9.1 percent in 1986 to 12.4 percent in 1990. Over the same time period, grade point average improved for all ethnic groups except Latinos. A broader sector of the population is gravitating toward a college preparatory curriculum and meeting eligibility requirements. Assuming that eligibility rates remain constant, larger high school graduating classes by the year 2006 may generate close to 11,000 more UC eligible students. Enrollment projection models that carefully gauge each ethnic group's eligibility rate as well as their propensity to enroll are needed. Policy implications are discussed. (JDD)