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Primary sources

Every rule traces
to one of these documents.

Codecheck extracts from official government publications only. This page lists every source document used — with version, date, and codification status so you can verify any result yourself.

1
Primary coverage
Village of Westmont Zoning Ordinance
Village of Westmont, IL — Community Development Department
Type
Municipal ordinance
Version
As amended, June 2026 PDF
Articles read
II–XIV, XVI (of 17 total)
Codification
Supersedes Municode pending codification
The official "as amended" PDF published by the Village, reflecting maintenance amendments approved by the Village Board on February 19, 2026. This is the authoritative version — the Village's own published notice confirms it supersedes the Municode online version pending codification.
Village of Westmont, IL. Zoning Ordinance (Ch. 95), As Amended. June 2026. Arts. II–V, VII, IX–XIV, XVI.
2
Primary coverage
Ordinance No. 22-113
Village of Westmont, IL — Model Code Adoption Amendments
Type
Building code amendment ordinance
Adopted
November 3, 2022
Effective
December 1, 2022
Codes adopted
2021 IBC/IRC/IMC/IFC, 2020 NEC
Adopts the 2021 International Building Code, 2021 International Residential Code, 2021 International Mechanical Code, 2021 International Fire Code, and 2020 National Electrical Code, with Westmont-specific amendments including automatic sprinkler triggers for new construction exceeding 2,500 sq ft and new two-unit dwellings.
Village of Westmont, IL. Ordinance No. 22-113: An Ordinance Adopting and Amending the 2021 International Codes and the 2020 National Electrical Code. November 3, 2022.
3
State code
Illinois Energy Conservation Code
Illinois Capital Development Board
Type
State energy code
Base code
2018 IECC
Climate zone
5A (northeastern IL)
Scope
All new construction in Illinois
Illinois-specific amendments to the 2018 IECC. Applies statewide to all new residential and commercial construction. Key values extracted: ceiling R-49, wall R-20, fenestration U-0.30, air leakage ≤3.0 ACH50 for residential in Climate Zone 5A.
Illinois Capital Development Board. Illinois Energy Conservation Code. Based on 2018 IECC. Springfield, IL.
4
State code
Illinois Plumbing Code
Illinois Department of Public Health
Type
State plumbing code
Citation
77 Ill. Adm. Code 890
Scope
All plumbing in Illinois
Replaces
IPC (not adopted in IL)
Illinois does not adopt the International Plumbing Code. The Illinois Plumbing Code (77 Ill. Adm. Code 890) is the mandatory statewide plumbing standard, enforced by the IDPH. Key values: minimum water service pipe diameter 0.75 in, minimum pipe cover depth 18 in.
Illinois Department of Public Health. Illinois Plumbing Code. 77 Ill. Adm. Code 890. Springfield, IL.
5
State code
NFPA 101 Life Safety Code
National Fire Protection Association / State of Illinois
Type
State fire/life safety code
Edition
2015 (IL adoption)
Effective in IL
January 1, 2020
Enforcing agency
Illinois State Fire Marshal
Illinois adopted NFPA 101 (2015 edition) as the state life safety code, effective January 1, 2020, administered by the Illinois State Fire Marshal. Applies to all places of assembly, occupancies, and structures requiring a life safety inspection in Illinois.
Illinois State Fire Marshal. Adoption of NFPA 101 Life Safety Code, 2015 Edition. Effective January 1, 2020. Springfield, IL.

6
Primary coverage
Illinois — 204 Additional Municipal & County Ordinances
Illinois municipalities and counties — Community Development / Planning Departments
Type
Municipal & county zoning codes
Jurisdictions
209 total · 209 eligible
Districts
2,542 zoning districts
Avg depth
14.5 / 18 categories
DuPage County (UDO), Cook County (Zoning Ordinance), McHenry County (UDO), Kane County (Zoning Code), Will County (Code of Ordinances Ch. 155), Lake County (UDO), Boone County, Winnebago County, DeKalb County, Champaign County, McLean County, and 192 additional municipal ordinances — all sourced from official government PDFs or Municode-published versions verified against the municipality's current adopted text.
State codes: IBC 2018 (mandatory statewide), NEC 2023 (local adoption varies), Illinois Plumbing Code (77 Ill. Adm. Code 890), IECC 2021 (mandatory statewide), NFPA 101 2015 (Illinois State Fire Marshal). Climate Zone 5A.
7
Primary coverage
Missouri — Municipal Zoning Codes (78 jurisdictions)
Missouri municipalities and counties — Planning & Development Departments
Type
Municipal zoning ordinances
Jurisdictions
78 total · 74 eligible
Districts
1,084 zoning districts
Avg depth
15.7 / 18 categories
Kansas City Code of Ordinances (Ch. 88 Zoning), St. Louis City Zoning Code (Title 26), St. Louis County Zoning Ordinance, Springfield Code of Ordinances, Columbia Code of Ordinances, Jefferson City Code of Ordinances, Independence Code, Lee's Summit Code, Cape Girardeau Code, Branson Code, and 68 additional jurisdictions. All sourced from official Municode publications or direct city PDF downloads.
State codes: No mandatory statewide building code. NEC adoption and plumbing code (IPC) vary by city. Missouri State Fire Marshal enforces NFPA 101. No statewide energy code. Climate Zones 4A–5A.
8
Primary coverage
Kansas — Municipal Zoning Codes (53 jurisdictions)
Kansas municipalities — Planning & Zoning Departments
Type
Municipal & unified gov't codes
Jurisdictions
53 total · 47 eligible
Districts
801 zoning districts
Avg depth
14.6 / 18 categories
Wichita-Sedgwick County Unified Zoning Code, City of Topeka Code of Ordinances (Ch. 18–19 Zoning), Manhattan Code of Ordinances, Lawrence Development Code, Salina Code of Ordinances, Prairie Village Municipal Code, Westwood Municipal Code, Roeland Park Municipal Code, Fairway Municipal Code, Lenexa Code, Shawnee Code, Merriam Code, and 41 additional jurisdictions. All sourced from official government PDFs or Municode.
State codes: No mandatory statewide building or electrical code — all local adoption. No statewide energy code. Kansas State Fire Marshal. Climate Zones 4A–5A.
9
Primary coverage
Nebraska — Municipal Zoning Codes + State Codes (29 jurisdictions)
Nebraska municipalities — Planning Departments + Nebraska Electrical Division
Type
Municipal ordinances + state codes
Jurisdictions
29 total · 29 eligible
Districts
466 zoning districts
Avg depth
16.2 / 18 · 9 perfect
City of Omaha Municipal Code (Title 55 Zoning), City of Lincoln Municipal Code (Ch. 27 Zoning), Bellevue Code of Ordinances, Papillion Code, Norfolk Code, Grand Island Code, La Vista Code, Fremont Code, Kearney Code, Columbus Code, North Platte Code, Douglas County Code, Sarpy County Code, and 16 additional jurisdictions. All sourced from official Municode publications.
Nebraska Dept. of Labor: IBC 2018 (state-enabled), NEC 2023 (mandatory statewide, effective Aug 1 2024), UPC 2018 (mandatory statewide), IECC 2021 (mandatory statewide). Nebraska State Fire Marshal. Climate Zones 5A–5B.
10
Primary coverage
Indiana — Municipal Zoning Codes + 675 IAC (39 jurisdictions)
Indiana municipalities — Planning Departments + Indiana Fire Prevention & Building Safety Commission
Type
Municipal ordinances + 675 IAC
Jurisdictions
39 total · 39 eligible
Districts
573 zoning districts
Avg depth
14.7 / 18 categories
South Bend Municipal Code (Ch. 21 Zoning), Bloomington Code of Ordinances, West Lafayette Municipal Code, Mishawaka Code, Portage Code, Muncie Code, Lafayette Code, Anderson Code, Michigan City Code, Hamilton County Code, and 29 additional jurisdictions. All sourced from official Municode publications or direct city PDFs.
Indiana Fire Prevention & Building Safety Commission: IBC 2012 (675 IAC 13, mandatory statewide), NEC 2008 (675 IAC 16 — oldest NEC in dataset), IRC 2012, ASHRAE 90.1-2007. Climate Zone 5A.
11
Primary coverage
Wyoming — Municipal Zoning Codes + State Plan Review (25 jurisdictions)
Wyoming municipalities + Wyoming Dept. of Fire Prevention & Electrical Safety
Type
Municipal ordinances + state codes
Jurisdictions
25 total · 23 eligible
Districts
339 zoning districts
Avg depth
16.9 / 18 · 14 perfect
Cheyenne Code of Ordinances (Ch. 28 Zoning), Casper Municipal Code (Title 17), Laramie Code of Ordinances, Sheridan Code, Jackson/Teton County Land Development Regulations, Green River Code, Torrington Code, Lander Code, Powell Code, Worland Code, Douglas Code, and 12 additional jurisdictions. Sourced from official Municode or direct city PDFs. Teton County LDR sourced directly from county website.
Wyoming State Fire Marshal (wsfm.wyo.gov): IBC 2024, IFC 2024, IMC 2024, IFGC 2024 (effective June 28 2024). W.S. §35-9-106: NEC 2023 mandatory statewide. IPC 2021. No mandatory statewide energy code. Climate Zones 5B–7.
12
Primary coverage
Iowa — Municipal Zoning Codes + State Codes (21 jurisdictions)
Iowa municipalities + Iowa State Building Code Bureau
Type
Municipal ordinances + state codes
Jurisdictions
21 total · 18 eligible
Districts
343 zoning districts
Avg depth
15.6 / 18 categories
Des Moines Municipal Code (Ch. 134 Zoning), Cedar Rapids Code of Ordinances, Oskaloosa Code, Decorah Code, Ottumwa Code, Muscatine Code, Council Bluffs Code, Fort Dodge Code, Cedar Falls Code, Keokuk Code, and 11 additional jurisdictions. All sourced from official Municode publications or city-hosted PDFs.
Iowa State Building Code Bureau: IBC 2024 (mandatory statewide — most current IBC in dataset), NEC 2020 (mandatory statewide), UPC 2021 (mandatory statewide), IECC 2021 (mandatory statewide). Climate Zones 5A–6A.
13
Primary coverage
South Dakota — Municipal Zoning Codes + State Codes (15 jurisdictions)
South Dakota municipalities + SD Dept. of Labor & Regulation (DLR)
Type
Municipal ordinances + state codes
Jurisdictions
15 total · 14 eligible
Districts
196 zoning districts
Avg depth
17.1 / 18 · 10 perfect
Brookings Code of Ordinances, Aberdeen Code, Yankton Code, Huron Code, Pierre Code, Belle Fourche Code, Madison (SD) Code, Sisseton Code, Deadwood Code of Ordinances (historic overlay district — requires Historic Preservation Commission review for all exterior changes). All sourced from official Municode publications or SD Codified Laws.
SD DLR (dlr.sd.gov): IBC 2021 default floor (SDCL Ch. 11-10), NEC 2023 mandatory statewide (ARSD Ch. 20:44:14:01, effective Nov 12 2024), UPC 2024 mandatory statewide (SB 25, signed March 13 2025). No mandatory statewide energy code. Climate Zone 6A.
14
Primary coverage
Kentucky — Municipal Zoning Codes + 815 KAR (11 jurisdictions)
Kentucky municipalities + Kentucky Office of Housing, Buildings & Construction (OHBC)
Type
Municipal ordinances + 815 KAR
Jurisdictions
11 total · 8 eligible
Districts
151 zoning districts
Avg depth
15.6 / 18 categories
Owensboro Code of Ordinances (Zoning), Paducah Code of Ordinances, Henderson Code, Winchester Code, Maysville Code, Flatwoods Code, Mayfield Code, and 4 additional jurisdictions. All sourced from official Municode publications or city-hosted PDFs. Kentucky OHBC administrative regulations sourced from LRC Online (apps.legislature.ky.gov).
Kentucky OHBC: IBC 2015 (815 KAR 7:120, mandatory statewide), NEC 2023 (815 KAR 4:050, mandatory statewide, effective Jan 1 2025), IPC (mandatory statewide), IECC 2009/2012 (mandatory statewide). Climate Zones 4A–5A.
15
Primary coverage
Montana — Municipal Zoning Codes + Montana DLI Codes (25 jurisdictions)
Montana municipalities + Montana Dept. of Labor & Industry (DLI) Building Codes Program
Type
Municipal ordinances + state codes
Jurisdictions
25 total · 23 eligible
Districts
289 zoning districts
Avg depth
17.1 / 18 · 12 perfect
Billings Municipal Code, Great Falls Code of Ordinances, Missoula Code of Ordinances (Title 20 Zoning), Hamilton Code, Miles City Code, Livingston Code, Anaconda-Deer Lodge Consolidated Government Code, Butte-Silver Bow Consolidated Code, Polson Code, Choteau Code, and 15 additional jurisdictions. Sourced from official Municode publications. Montana DLI codes sourced from bsd.dli.mt.gov/building-codes-permits/current-codes (verified July 2026). Montana SB 528 (2023) ADU law sourced from Montana Code Annotated (MCA 76-2-345).
Montana DLI Building Codes Program (ARM 24.301.131 et seq., effective June 11 2022): IBC 2021, IRC 2021, IMC 2021, IFGC 2021, IEBC 2021, IECC 2021 (mandatory statewide), UPC 2021, NEC 2020, IWUIC 2021 (only mandatory statewide WUI code in dataset). Climate Zones 6B–7.

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