(65 ILCS 5/1-2-6)
(from Ch. 24, par. 1-2-6)
The contents of all municipal ordinances, the date of passage,
and the date of publication or posting, where required, may be proved by
the certificate of the municipal clerk, under the seal of the corporation.
Whenever municipal ordinances are printed in book or pamphlet form, and
purport to be published by authority of the corporate authorities, such
book or pamphlet shall be prima facie evidence of the contents, passage,
and legal publication of such ordinances, as of the dates mentioned in such
book or pamphlet, in all courts and administrative tribunals.
(Source: Laws 1961, p. 576.)