Zoning & Land Use

City of Rockford Zoning Ordinance - As approved by City Council March 24, 2008.  Effective April 3, 2009.  As amended through March 28, 2011.

Building

2009 ICC [IBC] International Building Code (with local amendments)
2009 ICC [IEBC] International Existing Building Code (with local amendments)
2009 ICC [IRC] International Residential Code for 1 & 2 Family Dwellings (with local amendments)
1997 CDB [IAC] Illinois Accessibility Code (April 24, 1997) (click here for a link to download a copy of code)

Energy Code

2012 ICC [IECC] International Energy Conservation Code as adopted by the Illinois Energy Efficient Building Act. (with state amendments)

Fire Prevention

2009 ICC [IFC] International Fire Code(with local amendments)

Mechanical / Plumbing

2009 ICC [IMC] International Mechanical Code (with local amendments)
2009 ICC [IFGC] International Fuel Gas Code (with local amendments)
2004 IDPH [IPC] Illinois Plumbing Code (with local amendments) - LINK TO ILLINOIS DEPARTMENT OF PUBLIC HEATLH PLUMBING PROGRAM
2009 ICC [IRC] International Residential Code for 1 & 2 Family Dwellings(with local amendments)

Electrical

2008 NFPA 70 [NEC] National Electrical Code (with local amendments)
2009 ICC [IRC] International Residential Code for 1 & 2 Family Dwellings (with local amendments)

Property Standards/Existing Structures

2009 ICC [IMPC] International Property Maintenance Code (with local amendments)

Others

All those codes & standards [i.e. NFPA 13, NFPA 72, etc.] included by reference by the codes listed above.