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

For Alaska, governing body is Alaska Department of Labor and Workforce Development, Mechanical Inspection Section; statute citation is Alaska Statutes Title 18, Chapter 60 Boilers and Unfired Pressure Vessels 18.60.180; power boiler inspection interval is certificate inspection annually; external inspection while under pressure, or internal inspection as warranted; low-pressure boiler inspection interval is certificate inspection every two years with an internal inspection every four years if construction permits; pressure vessel inspection interval is inspected internally and externally at intervals set by the Department of Labor and Workforce Development, recorded from its source on 2026-08-05.

- **State:** Alaska _(verified: appears in the quote below)_
- **Governing body:** Alaska Department of Labor and Workforce Development, Mechanical Inspection Section
- **Statute citation:** Alaska Statutes Title 18, Chapter 60 Boilers and Unfired Pressure Vessels 18.60.180 _(verified: appears in the quote below)_
- **Power boiler inspection interval:** certificate inspection annually; external inspection while under pressure, or internal inspection as warranted
- **Low-pressure boiler inspection interval:** certificate inspection every two years with an internal inspection every four years if construction permits
- **Pressure vessel inspection interval:** inspected internally and externally at intervals set by the Department of Labor and Workforce Development
- **Accepted inspector types:** Department inspector; insurance company inspectors (inspections accepted in lieu of department inspector); special inspector commission may be issued to insurance inspectors or owner/user inspectors holding a Certificate of Competency or commission issued by a state that has adopted the ASME Code
- **Exemptions:** Boilers and unfired pressure vessels under federal regulation; unfired pressure vessels meeting US DOT requirements for shipment; air tanks on vehicles under other state authorities; air tanks on railroad rights-of-way; unfired pressure vessels of 5 cubic feet or less or inside diameter not exceeding 6 inches; unfired pressure vessels designed for pressure not exceeding 15 psi when not in places of public assembly; manually-fired miniature boilers as a hobby (volume less than 5 cubic feet, grate area less than 2 square feet); antique manually-fired boilers as a hobby; automatic utility hot-water heaters used for space heating not exceeding 120 gallons/210°F/150 psig/200,000 BTU/hr with tempering valve; farm agricultural boilers; steam and hot-water heating boilers in private residences or fewer than six families; unfired pressure vessels containing only cold water for domestic supply; unfired pressure vessels containing liquefied petroleum gas; unfired pressure vessels entirely full of water/hot-water supply boilers not exceeding 200,000 BTU/hr, 210°F, 120 gallons; coil-type boilers below specified limits

## What the source says

> Alaska Statutes Title 18, Chapter 60 Boilers and Unfired Pressure Vessels 18.60.180 RULES FOR CONSTRUCTION AND STAMPING Construction:

## 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/).