The Electronic Safety and Licensing Application (eSLA) is now live for Boilers and Pressure Vessels. Customers must use eSLA to submit plan reviews/permits, as well as search the Public Lookup for this program area.
Visit esla.wi.gov to get started, or go to the
Customer Information page for instructions on first-time login.
Safety requirements are enforced by the Division of Industry Services (DIS) staff for power boilers, heating boilers, pressure vessels, and nuclear power plant components. Shop and field consultation and inspections are provided. Boiler repairers are registered and boiler inspectors are certified.
Report an Accident
To report a Boiler or Pressure Vessel accident during regular business hours please call 608-622-6587. After hours, weekends, or holidays, please call Wisconsin Emergency Management after-hours incident reporting at 1(800) 943-0003 ext. 2 for assistance.
Permit and Invoice Questions
Please email eSLAsupport@wisconsin.gov to update the owner and/or address, to request a replacement permit to operate, or to answer a general invoice inquiry question.
|Guideline to Power Piping in State of WI SPS 341|
|Power Piping/Welded Refrigeration Piping
Installation Registration (PDF)|
Power Piping/Welded Refrigeration Piping
Installation Registration (fill-in)
|Boiler and Unfired Pressure Vessel
Boiler and Unfired Pressure Vessel Registration (fill-in)
||Boiler and Pressure Vessel Accident Report|
|NB 405||National Board Initial Boiler Certification Report
Form C1, NB405|
||Safety Valve Test Log |