105 ILCS 5/6-2
Unless abolished as provided in this Section, the regional board of school trustees, in both single county and multi-county educational service regions, shall consist of 7 members. In single county regions not more than one trustee may be a resident of any one congressional township; however, in case there are fewer than 7 congressional townships in the region then not more than two of such trustees may be residents of the same congressional township. Notwithstanding the foregoing residency provision, in a single county region with a population of greater than 750,000 inhabitants, but less than 1,200,000 inhabitants, 2 trustees may be residents of the same congressional township if and only if such trustees were elected at the April 9, 2013 consolidated election. In 2 county regions at least 2 trustees shall be residents of each county. In 3 or more county regions at least one trustee shall be a resident of each county. If more than 7 counties constitute the educational service region, the regional board of school trustees shall consist of one resident of each county.
The regional board of school trustees shall be a body politic and corporate by the name of "Regional Board of School Trustees of.... County (or Counties), Illinois." Such corporation shall have perpetual existence with power to sue and be sued and to plead and be impleaded in all courts and places where judicial proceedings are had.
Upon abolition of the regional board of school trustees in an educational service region having 2,000,000 or more inhabitants as provided in subsection (a) of this Section, all books, records, maps, papers, documents, equipment, supplies, accounts, deposits, and other personal property belonging to or subject to the control or disposition of the former regional board of school trustees (excepting only such items as may have been provided by the county board) shall be transferred and delivered to the trustees of schools of the townships and the school boards that are the successors to the former regional board of school trustees for the territory included within their respective school townships or school districts.
From and after the effective date of this amendatory Act of 1992, any reference in the School Code or any other law of this State to the regional board of school trustees or county board of school trustees shall mean, with respect to all territory within an educational service region containing 2,000,000 or more inhabitants that formerly was served by a regional board of school trustees abolished under subsection (a) of this Section, the trustees of schools of the township or the school board of the school district that is the successor to the former regional board of school trustees with respect to the territory included within that school township or school district.
105 ILCS 5/6-2