In Colorado, the Colorado Student Assessment Program (CSAP) has been created as the performance standard to determine progress that Colorado students are making toward meeting content standards. This study utilized results of the CSAP across 3 years (1999)(2000)(2001) to determine the impact that standards-based education in Colorado is having on Latino students in general, and on Latino English language learners (ELLs) specifically. CSAP results in reading and writing in English and Spanish were compared for Latinos taking the CSAP in Spanish, Latinos taking the CSAP in English, and all Colorado third and fourth graders. This study also examined the extent to which school report card grades were affected in schools with large numbers of ELLs. Results indicate that the percentage of Latinos meeting state standards as measured by the Spanish CSAP is equivalent to, and in some cases higher, than the percentage of Latinos who are taking the CSAP in English. However, a gap exists between Latinos, no matter what their language of instruction and testing, and all Colorado third and fourth graders. This study found that school report card grades are lower in schools with large numbers of ELLs; this raises questions about the negative impact of school report card grades on schools that have high numbers of ELLs.