65 ILCS 5/11-19.1-11
For the purposes of lessening or preventing the discharge of air contaminants, the corporate authorities of a city, village or incorporated town may prescribe by ordinance for the regulation of (1) the design and installation of accessory or appurtenant parts and equipment of buildings and structures and uses of land connected with the emission of air contaminants, (2) the operation or use of equipment and appliances emitting air contaminants, (3) the conduct or carrying on of uses of land which causes the emission into the atmosphere of air contaminants, and (4) the abatement of an operation, activity or use causing air contamination. For the purposes of this Section, "air contaminant" means and includes but is not limited to the following: dust, soot, mist, smoke, fumes, fly ash, vapor, corrosive gas or other discharge and any other air borne material or substance that is offensive, nauseous, irritating or noxious to humans or other animal life.
The corporate authorities of any city, village or incorporated town may make contracts providing for a program of joint air contamination control within the jurisdiction of the contracting parties and providing terms and conditions that are not in conflict with this Section with the corporate authorities of any one or more of the following:
The corporate authorities of each city, village or incorporated town desiring to so contract shall appoint a committee of no more than 3 of its own members to negotiate the terms and conditions of the proposed contract which shall be subject to approval by those corporate authorities. The rules and regulations for air contamination control established pursuant to the terms and conditions of such approved contract shall be adopted by ordinance by each contracting city, village or incorporated town.
Whenever the corporate authorities of any city, village or incorporated town enter a contract that is authorized by this Section they shall include in the annual appropriation ordinance for each fiscal year, an appropriation of a sum of money sufficient to pay the amount which, by the terms of the contract, is to become due and payable from that city, village or incorporated town during the current fiscal year.
65 ILCS 5/11-19.1-11