70 ILCS 2905/3-6

All ordinances making any appropriation, shall within one month after they have been passed, be published at least once in a newspaper published in such district, in each of the counties in which the same is situate; and no such ordinance shall take effect until 10 days after it is so published. All other ordinances, orders and resolutions shall become effective from and after their passage, unless otherwise provided therein.