The Houston Independent School District (HISD) offers two main ESL programs for students whose native language is not English and who need to develop and enhance their English language skills (emergent bilinguals or EBs). The Content-Based ESL model (CB-ESL) consists of an intensive program of English instruction in all subject areas with instruction delivered through the use of ESL methodology, commensurate with the student's level of English proficiency. The district also offers a Pullout ESL model (PO-ESL), where students are served with an ESL language program for part of each day but are in a mainstream instructional setting in other subject areas. This report contains summaries of enrollment and academic performance for students in CB-ESL and PO-ESL, as well as those now categorized as Alternative ESL students (Alt-ESL).