(65 ILCS 5/11-35-1) (from Ch. 24, par. 11-35-1)
    Sec. 11-35-1. Any municipality with a population of 500,000 or more, by ordinance may provide for a board of plumbing examiners (1) to conduct examinations for journeyman plumbers and master plumbers, (2) to register plumbers' apprentices, and (3) to issue and revoke plumber's licenses within such a municipality.
(Source: Laws 1961, p. 576.)