This report has been provided to the Legislature on an annual basis since 2000 when the legislature amended the language of G.L. c. 71B to align Massachusetts special education terminology with the federal "Individuals with Disabilities Education Act" ("IDEA"). The Department is required to submit an annual report on compliance and performance to the Office of Special Education Programs (OSEP) each year on February 1. This annual state legislative report provides: (1) statewide longitudinal enrollment data on students with disabilities; (2) data on the percentage of students with disability by disability category, educational environment, and other special population status; (3) data on the enrollment and educational environment of students who have been diagnosed with Specific Learning Disability (SLD), as this disability category has the highest rate of identification and represents approximately one third of Massachusetts' special education population; (4) a description of programs and improvement activities -- including the development of the Massachusetts Tiered System of Support (MTSS), the new bullying prevention and intervention law, and the Massachusetts FOCUS Academy -- that have the potential to reduce the need for special education services; and (5) information on special education expenditures, claims filed for "circuit breaker" reimbursement, and Medicaid reimbursement for eligible services provided in the school environment. [For the previous report, "Report to the Legislature: Annual Report on Students with Disabilities, 2009-2010," see ED593661.]