Vermont
For Vermont, governing body is Department of Public Safety, Division of Fire Safety; statute citation is Vermont Statutes Annotated, Title 20 VSA, Chapter 173, Subchapter 5, Vermont Fire & Building Safety Code - 2015; power boiler inspection interval is Annual internal and external inspection while not under pressure; External inspection, while in operation and under pressure, approximately six months from the internal inspection; low-pressure boiler inspection interval is 2 year external inspection; 2 year internal inspection, where construction permits; pressure vessel inspection interval is 3 year external inspection; 3 year internal inspection, where construction permits, recorded from its source on 2026-08-05.
- State
- Vermont
- Governing body
- Department of Public Safety, Division of Fire Safety
- Statute citation
- Vermont Statutes Annotated, Title 20 VSA, Chapter 173, Subchapter 5, Vermont Fire & Building Safety Code - 2015.
- Power boiler inspection interval
- Annual internal and external inspection while not under pressure; External inspection, while in operation and under pressure, approximately six months from the internal inspection verified
- Low-pressure boiler inspection interval
- 2 year external inspection; 2 year internal inspection, where construction permits verified
- Pressure vessel inspection interval
- 3 year external inspection; 3 year internal inspection, where construction permits
- Accepted inspector types
- Inspections made by inspectors with a National Board commission and commissioned by the department are required.
- Exemptions
- Boilers or pressure vessels located on common carriers subject to Surface Transportation Board, US Department of Transportation, Federal Railroad Administration, or Nuclear Regulatory Commission; Hot-water heaters and potable water storage tanks with heat input of less than 200,000 BTU per hour, water temperature less than 210°F, water-containing capacity less than 120 gallons
What the source says
High pressure power boilers (more than 15 psi) and high temperature water boilers: Annual internal and external inspection while not under pressure; External inspection, while in operation and under pressure, approximately six months from the internal inspection. Low-pressure hot water heating boilers (not exceeding 160 psi and/or temperatures not exceeding 250 degrees) and low-pressure steam boilers (not exceeding 15 psi): 2 year external inspection; 2 year internal inspection, where construction permits, for steam heating boiler (not exceeding 15 psi).
— nationalboard.org, retrieved 2026-08-05
Source
- nationalboard.orghttps://www.nationalboard.org/PrintAllSynopsis.aspx?Jurisdiction=Select