News & Seminars

Attention Electrical Contractors, Electricians and Building Officials

Here is a timeline of effective dates related to several parts of the code update:

  • January 1, 2020: 2017 NEC adopted for one- and two-family dwellings. “One− and two− family dwellings” means any buildings that contain one or two dwelling units the construction of which commenced on or after December 1, 1978, per SPS 316.006(7). Effective August 1, 2018, the 2017 NEC will apply to any building that does not meet the definition of “one and two- family dwellings”.
  • January 1, 2020: Statewide requirements for Commercial Electrical Permits and Inspections go into effect.

Related topics:

  • The New SPS-316 which adopted the 2017 NEC  August 1, 2017, for Commercial Buildings and 1 & 2 family dwellings built prior to 12/1/1978. Download in resources.
  • One & Two-family changes will go into effect on January 1, 2020.
  • Wisconsin’s licensing law was in effect as of April 1, 2014
  • 2015 IBC Commercial Building Codes took effect for projects built after May 1, 2018.
  • Major changes in the 2015 IECC Energy Code. Lighting controls will be a topic for electricians moving forward to be compliant with new standards. Badger State Consulting can help with your design-build projects.
  • Wisconsin requirements for building plan review and inspection are outlined in the resources section below.  It’s important to keep in mind that the state required building plan approval is separate from local permitting.
  • The State of Wisconsin has put re-emphasis on commercial building general lighting and egress plans. New submittal requirements are in effect.
BSC provides Commercial Electrical Inspection Services for the State of Wisconsin within the following counties:

Marathon, Lincoln, Langlade, Oneida and Vilas


Wisconsin Administration Code SPS 316.012 requires the following for all electrical wiring as described below:
Except for an electrical wiring project described in s. 101.875 (2), Stats., and as provided in par. (b), no electrical wiring project may commence unless the owner of the premises where the installation is to occur or their agent holds a permit from the designated inspection agency if the project involves the installation of new or an addition to any electrical service, feeder, or branch circuit serving any of the following:
1. A farm.
2. A public building, structure, or premises.
3. A place of employment.
4. A campground.
5. A manufactured home community.
6. A public marina, pier, dock, or wharf.
7. A recreational vehicle park.
(b) Under emergency conditions, the necessary electrical wiring may commence without obtaining a permit, provided the owner of the premises where the installation is to occur or their agent submits a permit application to the inspection agency designated by the department to provide electrical inspections for the installation no later than the next business day after commencement of the installation.

Additional Resources:
eSLA Customer Information:
eSLA User Guides / Electrical Permit:
SPS 316:

https://docs.legis.wisconsin.gov/code/admin_code/sps/safety_and_buildings_and_environment/301_319/316

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