This report examined three potential indicators of college enrollment school and district staff might use to identify and support students at risk of not attending college: (1) Chicago: Designed to predict high school graduation; based on earning six course credits--the minimum to advance to the next grade in HISD--and having at most one semester "F" in a core subject (English, math, science, or social studies); (2) Houston Education Research Consortium (HERC): Designed to predict college enrollment; based on having an attendance rate of 90% or higher, having a B-average (80% or higher), and earning at least 0.5 advanced course credits; and (3) State: Designed to predict college enrollment by the Texas Education Agency; based on meeting the benchmark on the English/language arts and mathematics tests. First, the findings suggested the HERC indicator might be the best predictor of college enrollment. Second, ninth-grade was when students were most at risk of not meeting the HERC indicator and fell off-track from college enrollment. [For the full report, see ED607702; for the appendices, see ED607717.]