The Regional Transportation Authority Act (70 Ill. Comp. Stat. 3615) designates the Regional Transportation Authority as the financial and oversight body for the 3 transit agencies (referred to as "divisions" or "service boards") in northeastern Illinois: the CTA, Pace, and Metra. Each of the 4 agencies have their own appointed boards. The RTA is governed by a 15-member board of directors appointed by the mayor of Chicago and the county governments of Cook, DuPage, Kane, Lake, McHenry and Will counties. RTA also has an citizens advisory board.
The CTA operates subway and bus service in Chicago and the metropolitan areas of Cook County and is governed by the Chicago Transit Board. The board consists of 7 members appointed by the Mayor of Chicago and the Governor of Illinois. CTA also has a citizens advisory board.
Pace manages public bus transportation in suburban Cook, Will, DuPage, Kane, Lake, and McHenry counties and is governed by a 13 member board of directors. The board consists of the Chicago Commissioner of the Mayor′s Office for People with Disabilities, plus 12 members appointed by the county governments. With the exception of the Commissioner, each member must be a current or former mayor or village president from his or her respective region. Metra also has a citizens advisory board.
Metra oversees all commuter rail operations in Cook, DuPage, Kane, Lake, McHenry and Will Counties. It is governed by an 11 member board of directors appointed by the mayor of Chicago and the county governments of Cook, DuPage, Kane, Lake, McHenry and Will counties. Metra also has a citizens advisory board.
The official regional planning organization for Cook, DuPage, Kane, Kendall, Lake, McHenry, and Will counties. The 15 member board is appointed by the mayor of Chicago and by the mayors and county governments of the member counties. CMAP has both a citizens advisory committee and an advisory council composed of the chief executives of the 283 municipalities in the seven-county CMAP region.
The district acquires, restores, and manages forests and parks. The boundaries of the district are co-extensive with the boundaries of Cook County, so the Cook County Board of Commissioners serves as the governing body for the district.
An independent government authority in Cook County charged with protecting the quality of the water supply from Lake Michigan, improving the quality of water in area rivers and streams, and protecting businesses and homes from flood damage. The district is governed by a nine–member Board of Commissioners, elected at large, serving staggered 6 year terms.
Oversees mosquito abatement activities in Evanston, Glencoe, Glenview, Golf, Kenilworth, Lincolnwood, Morton Grove, Niles, Northbrook Skokie, Wilmette, and Winnetka. The disctrict is governed by 5 trustees, appointed by the President of the Cook County board.