For purposes of this subsection, a person shall be considered an "occupant" if and only if he or she has taken possession of and is living in the premises as his or her bona fide sole and exclusive residence, or, in the case of an owner of a single family residence under construction for his or her occupancy, he or she expects to take possession of and live in the premises as his or her bona fide sole and exclusive residence, and he or she has a current intention to live in such premises as his or her bona fide sole and exclusive residence for a period of not less than 6 months after the completion of the plumbing work performed pursuant to the authorization of this subsection, or, in the case of an owner of a single family residence under construction for his or her occupancy, for a period of not less than 6 months after the completion of construction of the residence. Failure to possess and live in the premises as a sole and exclusive residence for a period of 6 months or more shall create a rebuttable presumption of a lack of such intention.
Notwithstanding the provisions of this subsection (3), it shall be lawful for an irrigation contractor registered under Section 2.5 of this Act to employ or contract with one or more licensed plumbers in connection with work on lawn sprinkler systems pursuant to Section 2.5 of this Act.
Nothing contained in Public Act 83-878 was intended by the General Assembly nor should it be construed to require the employees of a governmental unit or privately owned municipal water supplier who operate, maintain or repair a water or sewer plant facility which is owned or operated by such governmental unit or privately owned municipal water supplier to be licensed plumbers under this Act. In addition, nothing contained in Public Act 83-878 was intended by the General Assembly nor should it be construed to permit persons other than licensed plumbers to perform the installation, repair, maintenance or replacement of plumbing fixtures, such as toilet facilities, floor drains, showers and lavatories, and the piping attendant to those fixtures, within such facility or in the construction of a new facility.
Nothing contained in Public Act 83-878 was intended by the General Assembly nor should it be construed to require the employees of a governmental unit or privately owned municipal water supplier who install, repair or maintain water service lines from water mains in the street, alley or curb line to private property lines and who install, repair or maintain water meters to be licensed plumbers under this Act if such work was customarily performed prior to the effective date of such Act by employees of such governmental unit or privately owned municipal water supplier who were not licensed plumbers. Any such work which was customarily performed prior to the effective date of such Act by persons who were licensed plumbers or subcontracted to persons who were licensed plumbers must continue to be performed by persons who are licensed plumbers or subcontracted to persons who are licensed plumbers. When necessary under this Act, the Department shall make the determination whether or not persons who are licensed plumbers customarily performed such work.
225 ILCS 320/3