Section 430 ILCS 75/5 - Exemptions(a) This Act shall not apply to the following boilers and pressure vessels: (1) Boilers and pressure vessels under federal regulations, except for boiler and pressure vessels in nuclear facilities subject to Section 2a, and boilers and pressure vessels located in cities of more than 500,000 inhabitants.(2) Pressure vessels used for transportation and storage of compressed or liquefied gases when constructed in compliance with specifications of the Department of Transportation and charged with gas or liquid, marked, maintained, and periodically requalified for use, as required by appropriate regulations of the Department of Transportation.(3) Pressure vessels located on vehicles operating under the rules of other State authorities and used for carrying passengers or freight.(4) Pressure vessels installed on the right of way of railroads and used directly in the operation of trains.(5) Boilers and pressure vessels under the inspection jurisdiction of the Department of Natural Resources and located on mine property.(6) Boilers and pressure vessels located on farms and used solely for agricultural purposes.(7) Steam boilers of a miniature model locomotive, boat, tractor, or stationary engine constructed and maintained as a hobby and not for commercial use, that have an inside diameter not exceeding 12 inches and a grate area not exceeding 1 1/2 square feet, provided they are constantly attended while in operation and are equipped with a water level indicator, pressure gauge, and a safety valve of adequate capacity.(8) Pressure vessels regulated and inspected under the Illinois Fertilizer Act of 1961.(9) Pressure vessels containing liquefied petroleum gas regulated under the Liquefied Petroleum Gas Regulation Act.(b) The following boilers and pressure vessels shall be exempt from the requirements of Sections 10, 11, 12, and 13 of this Act: (1) Steam boilers used for heating purposes and operated at a pressure not in excess of 15 pounds per square inch gauge (psig) and having a rating not in excess of 200,000 B.T.U. per hour input.(2) Hot water heating boilers operated at a pressure not in excess of 30 psig and having a rating not in excess of 200,000 B.T.U. per hour.(3) Boilers and pressure vessels, located in private residences or in multi-family buildings having fewer than 6 dwelling units.(4) Hot water supply boilers that are directly fired with oil, gas, or electricity when none of the following limitations are exceeded: (A) Heat input of 200,000 BTU per hour.(B) Water temperature of 200 degrees Fahrenheit.(C) Nominal water containing capacity of 120 U.S. gallons.(5) Coil type hot water boilers where the water can flash into steam when released directly to the atmosphere through a manually operated nozzle provided the following conditions are met: (A) There is no drum, headers, or other steam space.(B) No steam is generated within the coil.(C) Outside diameter of tubing does not exceed 1 inch.(D) Pipe size does not exceed 3/4 inch NPS.(E) Water capacity of unit does not exceed 6 U.S. gallons.(F) Water temperature does not exceed 350 degrees Fahrenheit.(6) Pressure vessels containing only water under pressure for domestic supply purposes, including those containing air, the compression of which serves only a cushion or airlift pumping function.(7) Pressure vessels operated at a pressure not exceeding 15 psig with no limitation on size.(8) Pressure vessels that do not exceed: (A) Both a volume of 15 cubic feet and 250 psig when not located in a place of public assembly.(B) Both a volume of 5 cubic and 250 psig when located in a place of public assembly.(C) A volume of 1 1/2 cubic feet or an inside diameter of 6 inches with no limitation on pressure.(9) Water conditioning equipment used for the removal of minerals, chemicals, or organic or inorganic particles from water by means other than application of heat including, without limitation, water softeners, water filters, dealkalizers, and demineralizers.(10) Steam boilers of railroad locomotives and traction engines built prior to 1955 that were constructed or operated in compliance with the Federal Locomotive Inspection Law and are in the permanent collection of a museum or historical association are exempt from the requirements of subsection (c) of Section 10 upon proof of such construction or inspection being furnished to the Board. Amended by P.A. 098-0756,§ 610, eff. 7/16/2014.Amended by P.A. 094-0748, § 5, eff. 5/8/2006.P.A. 88-608, eff. 1-1-95; 88-616, eff. 9-9-94; 89-235, eff. 8-4-95; 89-445, eff. 2-7-96.