Current Building Codes
The State of Wisconsin has adopted multiple codes for construction work.
1 and 2 Family Dwellings
- Wisconsin Uniform Dwelling Code (UDC) Trades Program Administrative Rules and Statutes
- Building: SPS 321 Construction standards
- Plumbing: SPS 325 Plumbing and SPS 382 to 387 Plumbing Code
- Electrical: SPS 324 Electrical standards and SPS 316 Electrical and 2017 National Electric Code (NEC)
- HVAC: SPS 323 Heating, ventilating, and air conditioning
- Energy: SPS 322 Energy conservation
Commercial Buildings
This includes all residential buildings larger than 2 units/duplexes.
- Building: 2021 International Building Code (IBC) and SPS 362 - Buildings and Structures (Wisconsin Specific Amendments)
- Plumbing: SPS 380 to 387 Plumbing Code
- Electrical: 2017 National Electric Code (NEC)
- HVAC: 2021 International Mechanical Code and SPS 364 - Heating, Ventilating, and Air Conditioning (Wisconsin Specific Amendments)
- Fuel Gas: 2021 International Fuel Gas Code and SPS 365 - Fuel Gas Appliances (Wisconsin Specific Amendments)
- Accessibility: 2017 ANSI: A117.1 (Adopted through 2021 IBC Standard)
- Energy: 2021 International Energy Conservation Code (IECC) and SPS 363 - Energy Conservation (Wisconsin Specific Amendments)
- Fire: 2024 International Fire Code (IFC)