In the 2011-2012 school year, 8.5 percent of Washington's students were English language learners (ELLs). Although this was a slight decrease from the previous year, the number of ELL students in Washington state has increased by 11.0 percent since 2005-06. The Transitional Bilingual Instruction Act of 1979 funds the Transitional Bilingual Instruction Program (TBIP) for students from homes where English is not the primary language spoken. Sixty-five percent of the state's school districts report English Language Learners (ELLs) There were 96,101 ELLs enrolled in Washington's schools for the 2011-2012 school year, 2,371 fewer students than the year before. This is the first recorded decrease in ELLs since the statewide database was established in 2005. This report includes historical program information and information for the 2011-2012 school year for the following: (1) Staffing and instruction; (2) ELL enrollment patterns and changes over time; (3) Languages spoken by students in the program; (4) Length of participation (time) in program; and (5) ELLs' performance on the WELPA, MSP, HSPE, and EOC performance. Data for this report were provided by districts with an approved program during the 2011-2012 school year. Assessment data was provided by OSPI's assessment department. This is a transitional year for OSPI data collection. Beginning in the 2012-13 school year, districts will enter student enrollment data only once into the Comprehensive Education Data and Research System (CEDARS). A bibliography is included.