Vermont Fire & Building Safety Code 2025, Section 7 (effective Nov 4, 2025): adopts NBIC 2021 Parts 1-3, ASME BPVC 2021, ASME CSD-1 2021 and B31.1 2020. Enforced by Division of Fire Safety, Dept. of Public Safety. Checked on the primary source; the state record was last reviewed 2026-11-12.
Section 7 text: commissioned inspector checks before service; power boilers inside and out annually plus an operating external about six months later; low-pressure boilers externally every two years, internal every three (steam) or five years (hot water); vessels over 5 cubic feet and 125 psi every three years. Single-dwelling-unit boilers excluded.
Source: primary document
Statewide layer. County and city amendments sit on top; confirm the local office for the address.
In force since Nov 4, 2025; Section 7 text read Oct 19, 2026; DFS boilers page confirms inspections by commissioned inspectors; no intervals on that page
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.
These apply when the building has the equipment or fits the type named. The frequency is the standard one; your local official can set a stricter one, so confirm it for the address.
Vermont Fire & Building Safety Code 2025, Section 7 (effective Nov 4, 2025): adopts NBIC 2021 Parts 1-3, ASME BPVC 2021, ASME CSD-1 2021 and B31.1 2020. Section 7 text: commissioned inspector checks before service; power boilers inside and out annually plus an operating external about six months later; low-pressure boilers externally every two years, internal every three (steam) or five years (hot water); vessels over 5 cubic feet and 125 psi every three years. Single-dwelling-unit boilers excluded.
Division of Fire Safety, Dept. of Public Safety.
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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