Boiler and Pressure Vessel Safety Act (430 ILCS 75) + 41 Ill. Adm. Code 2120 (recodified from Part 120; amended effective Apr 13, 2026, adopting ASME BPVC 2025, NBIC 2025, CSD-1 2024, API-510 11th ed.). Enforced by OSFM Boiler and Pressure Vessel Safety Division (state deputy inspectors) and commissioned insurance-company inspectors; certificate of inspection issued after fees are paid; residences and buildings under 6 dwelling units exempt. Verified on the primary source, re-checked weekly.
Owners must register equipment and have it inspected: power and high-temperature water boilers annually (internal), low-pressure heating and hot-water supply boilers every 2 years, pressure vessels every 3 years. First inspections by state inspectors; insurer inspectors may follow.
Source: primary document
Statewide layer. County and city amendments sit on top; the building view resolves them from your ZIP.
In force (amendments effective Apr 13, 2026, 50 Ill. Reg. 5659); no further proposal found
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.
Boiler and Pressure Vessel Safety Act (430 ILCS 75) + 41 Ill. Adm. Code 2120 (recodified from Part 120; amended effective Apr 13, 2026, adopting ASME BPVC 2025, NBIC 2025, CSD-1 2024, API-510 11th ed.). Owners must register equipment and have it inspected: power and high-temperature water boilers annually (internal), low-pressure heating and hot-water supply boilers every 2 years, pressure vessels every 3 years. First inspections by state inspectors; insurer inspectors may follow.
OSFM Boiler and Pressure Vessel Safety Division (state deputy inspectors) and commissioned insurance-company inspectors; certificate of inspection issued after fees are paid; residences and buildings under 6 dwelling units exempt.
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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