State Adoptions

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Purchase Illinois Codes

The 2018 IECC applies to residential and commercial construction for which permits are issued statewide. The Illinois State Board of Education has adopted the 2018 IECC, 2015 IBC, IFC, IMC, IFGC, IPMC, IEBC for Pre-K thru 12 public Education Facilities (other than vehicular), but do not apply to Chicago. IBC adopted by Dept. of Health for hospitals where local codes do not apply.

The below codes are in effect for state owned facilities:

  • 2015 International Building Code
  • 2018 International Energy Conservation Code
  • 2015 International Existing Building Code
  • 2015 International Fire Code (excluding Chapter 4)
  • 2015 International Fuel Gas Code
  • 2015 International Mechanical Code
  • 2015 International Property Maintenance Code

Links to State Adoption Agencies

Capital Development Board

State Board of Education

Department of Energy

Illinois State Fire Marshal

State Insurance Commissioner

Department of Natural Resources

Department of Public Health

Key Contacts

ICC Government Relations Representative
Tim Schmitz
Lead Senior Regional Manager

Capital Development Board:
William G. Stratton Building
401 S. Spring St.
Third Floor, Stratton Bldg
Springfield, IL 62706

Illinois State Board of Education:
100 North First Street, N-330
Springfield, IL  62777
(217) 785-8779

State Fire Marshal:
Office of the Illinois State Fire Marshal
1035 Adlai Stevenson Drive
Springfield, IL 62703
Phone: (217) 785-0969

State Insurance Commissioner:
320 W. Washington
Springfield, IL 62767
Phone: (217) 782-4515

Pool/Plumbing Adoption Agency:
Illinois Department of Public Health
535 West Jefferson Street
Springfield, Illinois 62761
Phone: (217) 782-4977