# Oregon — US boiler and pressure vessel inspection requirements by state

For Oregon, governing body is Department of Consumer and Business Services, Building Codes Division, Boiler and Pressure Vessel Group; statute citation is Oregon Revised Statutes, Volume 11, Title 38. Protection from Fire, Chapter 480. Explosives, Flammable Materials, Pressure Vessels, Sections 510 through 990; power boiler inspection interval is Power Boilers: Internal 1 Year, External 1 Year; low-pressure boiler inspection interval is Low-pressure steam and vapor-heating boilers: Internal 2 Years, External 2 Years. Cast-iron boilers: External 2 Years. Low-pressure hot-water heating and hot-water supply boilers: Internal 6 Years, External 2 Years; pressure vessel inspection interval is Pressure vessels subject to internal corrosion: Internal 2 Years, External 2 Years. Pressure vessels not subject to internal corrosion: External 2 Years. Pressure vessels containing anhydrous ammonia intended for use as a fertilizer: External 3 Years, recorded from its source on 2026-08-05.

- **State:** Oregon _(verified: appears in the quote below)_
- **Governing body:** Department of Consumer and Business Services, Building Codes Division, Boiler and Pressure Vessel Group
- **Statute citation:** Oregon Revised Statutes, Volume 11, Title 38. Protection from Fire, Chapter 480. Explosives, Flammable Materials, Pressure Vessels, Sections 510 through 990.
- **Power boiler inspection interval:** Power Boilers: Internal 1 Year, External 1 Year.
- **Low-pressure boiler inspection interval:** Low-pressure steam and vapor-heating boilers: Internal 2 Years, External 2 Years. Cast-iron boilers: External 2 Years. Low-pressure hot-water heating and hot-water supply boilers: Internal 6 Years, External 2 Years.
- **Pressure vessel inspection interval:** Pressure vessels subject to internal corrosion: Internal 2 Years, External 2 Years. Pressure vessels not subject to internal corrosion: External 2 Years. Pressure vessels containing anhydrous ammonia intended for use as a fertilizer: External 3 Years.
- **Accepted inspector types:** Inspections made by special boiler inspectors holding a valid Oregon Certificate of Competency from the Building Codes Division and continuously employed by insurance companies authorized to write boiler and machinery insurance in the state are accepted in lieu of inspections made by a deputy boiler inspector. _(verified: appears in the quote below)_
- **Exemptions:** Boilers and pressure vessels under federal control. Domestic water heaters not exceeding 120 gallons, 210°F, 150 psig, and 200,000 BTU per hour. Boilers operated at less than 15 psig located on farms and used solely for agricultural purposes. Boilers or pressure vessels used in a single private residence (exempt from subsequent inspections after installation). Pressure vessels operated at less than 15 psig.

## What the source says

> INSURANCE INSPECTION REQUIREMENTS Inspections made by special boiler inspectors holding a valid Oregon Certificate of Competency from the Building Codes Division and continuously employed by insurance companies authorized to write boiler and machinery insurance in the state are accepted in lieu of inspections made by a deputy boiler inspector.

## Source

- https://www.nationalboard.org/PrintAllSynopsis.aspx?Jurisdiction=Select

Last verified: 2026-08-05. Review by: 2027-08-05.
Part of [US boiler and pressure vessel inspection requirements by state](https://referencesource.org/boiler-inspection-requirements-by-state/).