Key resources to find city oudiances and codes.
Municipal Code of Chicago
(a.k.a. Laws and ordinances governing the city of Chicago, revised Chicago code)
The recent municipal codes in Govinfo department had been updated irregularly until circa 1998 but we no longer receive updated codes. Check also Google Books or Making of America for old municipal code books.
* Remember, Chicago Public/Harold Washington Library in downtown Chicago has the most complete collection of the Chicago municipal codes!
Chicago Municipal Code ; Zoning Ordinance ; Building Code
Recent, updated codes & ordinances by American Legal Publishing provided through the City of Chicago
Another local government codes of ordiances from around the US