225 ILCS 320/42

(225 ILCS 320/42)

Sec. 42. Home rule.

Pursuant to paragraph (h) of Section 6 of Article
VII
of the Illinois Constitution of 1970 the power to regulate the licensing of
plumbers, to promulgate a minimum plumbing code of
standards,
and  to regulate the registration of irrigation contractors and plumbing contractors shall,
except as may otherwise be provided within and pursuant to the provisions of
Section 16 and Section 16.1 of this Act, be exercised by the State and may
not be exercised by
any unit of local government, including home rule units.

(Source: P.A. 97-365, eff. 1-1-12.)