Heating, Ventilation, & Air Conditioning

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​As of April 12​, 2021, commercial building and elevator programs are liv​e in the Electronic Safety and Licensing ​Application (eSLA). Visit the Customer Information page for​ instructions on first-time login, and to view the full list of program areas in eSLA. ​​​​

​​​Go to esla.wi.gov​​​ ​​to get started​.​​​​​​​​​​​​​​​​​​​

The Division of Industry Services (DIS) ​sets standards for energy efficiency and heating, ventilating, and air conditioning systems. See the Commercial Building and One- and Two- Family Dwelling programs for enforcement, education, and consultation details for those building types.

DIS coordinates with local certified municipalities which provide plan review and inspection services for certain types of buildings. To become a local certified municipality, please visit the Delegated Agents​ page​.

Questions regarding commercial building codes can be sent to DspsSbBuildingTech@wisconsin.gov​.


Plan Review

1. Start at the Plan Review page for general information on submitting electronically. Also check the Delegated Municipality List​ to see if you can submit your plan review to the local municipality in lieu​ of DIS.

2. You may submit the following types of commercial building plan reviews to DIS:​​ ​ ​

  • Commercial Building and HVAC
  • Commercial Building and HVAC and Kitchen Hood
  • HVAC and Kitchen Hood
  • HVAC Only

3. Use the instructions and guidance documents on the eSLA Support page​ to establish your eSLA login profile and navigate the application process.​

4. Use the Plan Review Checklist and Code Templates​​ to ensure all required information is included in your submittal. Be sure to include the following documentation in the Attachments section of your application:

  • Plan Submittal - One file of the entire commercial building plan set.​
  • Signature Page​ - Required for:​​
    • Supervising Professional when total building area is 50,000 sf or larger
    • Owner when the application requests early permission to start
    • Component Submittal
  • Additional Documentation - Combine all documentation into one file. Include:
    ​Required for All Plan Reviews
    • Structural Calculations, stamped and sealed
    • Building Envelope Calculation (i.e. COMcheck or equal), stamped and sealed
    • Heat Loss Calculations, stamped and sealed
    • Hydraulic Calculations, stamped and sealed
    • Worksheets (as applicable)
      Required per Applicable Scope of Work
    • Voltage Drop,​ Battery Calculations
    • Specifications (optional)
    • Material Cut Sheets (optional) ​
​​5. Start your plan review application on the eSLA portal​.​​
Inspections

Buildings may be inspected at various stages during construction. The inspections will be done by a DIS Commercial Building Inspector, except when the project is located within a delegated municipality where a local inspector will provide the inspection services. You may also need local permits. 

Municipalitites delegated for inspections​

​​​​​​DSPS Commercial Building Inspection District Map

Forms

Docume​ntDescription
SBD-118
Buildings, HV​AC, Fire Protec​tion, and Component Application for Review for Delegated Agent use only
​See the Commercial Buildings program page for additional documents.

FAQs

SPS 364.0403 What ventilation requirements are to be met for a boat or other 'off-highway' vehicle storage area?

Answer: The Department's code has provisions that apply when a use does not fit entirely within one of the listed occupancies in either the IBC or IMC. The Department has specifically modified IMC 403.3 to address this. Ventilation rates for occupancies not represented in SPS Table 364.0403 shall be determined by using the most similar occupancy in the table as based on SPS 364.0403(5)(a). The storage of a boat is more similar to storage of a vehicle than it is to general warehouse storage. Additionally, when one rule prescribes a general requirement and a different rule a more specific requirement on the same subject, the more specific rule shall govern per SPS 361.03(3)(c). Either of the occupancy classifications listed in SPS Table 364.0403 and IMC 403.3 could potentially relate to the storage of boats, however enclosed parking structure is a more specific designation. The guidelines present in both 364.0403(5)(a)2.d. and 361.03(3)(c) support requiring boat or other 'off-highway' vehicle storage to comply with the exhaust requirements of an enclosed parking garage.

Publications

DocumentDescription
Water Heater Rules
Rules for Water Heaters U​sed as Space Heaters
HVAC Contractor Memo
​HVA​C Equipment Replacement Information
SBD-10115-P​
​Brochure for Building Plan Review and Inspection under Wisconsin's Commercial Building and Heating Codes

See the Commercial Buildings program page for additional documents.​