Wis. Admin. Code ch. SPS 341 Boilers and Pressure Vessels; valid permit to operate required (SPS 341.24). Enforced by DSPS Division of Industry Services boiler program (certified state inspectors); authorized insurance-company service agents may inspect and issue the permit to operate; state inspects once a permit is 30+ days expired. Reported, in verification, re-checked weekly.
Rule text (LII mirror): internal or external inspection every 12 months for power/miniature boilers, every 36 months for low-pressure steam and hot-water heating boilers and pressure vessels; DSPS FAQ cites 12-month internal inspection for any boiler.
Source: primary document
Statewide layer. County and city amendments sit on top; the building view resolves them from your ZIP.
In force; SPS 341 is not on DSPS's pending-rules list
There is no federal boiler certificate; the state program below is the whole obligation, with the ASME Boiler and Pressure Vessel Code and the National Board Inspection Code as the referenced standards.
Wis. Admin. Code ch. SPS 341 Boilers and Pressure Vessels; valid permit to operate required (SPS 341.24). Rule text (LII mirror): internal or external inspection every 12 months for power/miniature boilers, every 36 months for low-pressure steam and hot-water heating boilers and pressure vessels; DSPS FAQ cites 12-month internal inspection for any boiler.
DSPS Division of Industry Services boiler program (certified state inspectors); authorized insurance-company service agents may inspect and issue the permit to operate; state inspects once a permit is 30+ days expired.
Nothing is scheduled. The rule above stays in force until the state adopts a newer edition or amends the program; AHJ Radar re-checks the source weekly.
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