Ill. Admin. Code tit. 23 § 675.20
"District" means a local education agency, as defined in NCLB, in which one or more schools are in their second year of school improvement, in corrective action, or in restructuring status under NCLB.
"Eligible applicant" means a public school or a school district, a private school, a regional office of education, an intermediate service center, an institution of higher education, a not-for-profit organization (including a faith-based or community-based organization), or a private business. Public schools or school districts identified for improvement under NCLB shall only be eligible to the extent permitted by the United States Department of Education.
"Nationally recognized assessment" means a standardized or commercially available criterion-referenced test, assured by the provider to meet the generally accepted standards of validity and reliability set forth in "Standards for Educational and Psychological Testing" (2014), published by the American Educational Research Association, 1430 K St., N.W., Suite 1200, Washington, D.C. 20005. (No later amendments to or editions of these standards are incorporated.)
"NCLB" means Title I of the Elementary and Secondary Education Act (ESEA), as reauthorized by the No Child Left Behind Act of 2001, and any regulations promulgated by the federal government to implement that Act.
"Provider" means an eligible applicant approved by ISBE to provide SES to one or more districts.
"Related organization" means an entity that:
directly or indirectly controls, or is controlled by, a provider; or
influences, or is influenced by, the provider in terms of operational policies; or
is controlled or influenced by another organization that also controls or influences the provider.
"SES reporting period" shall mean a twelve-month period commencing on July 1 of a calendar year and continuing through June 30 of the following calendar year. The State Superintendent of Education may, however, adjust the SES reporting period for a particular provider to accommodate reporting for summer sessions.
"Supplemental educational services" or "SES" means additional academic instruction that is provided outside of the regular school day and designed to increase the academic achievement of eligible students in schools required to provide these services in accordance with NCLB. These services may include academic assistance such as tutoring, remediation, and other educational interventions.
Ill. Admin. Code tit. 23, § 675.20