Reference Source

Alaska

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
Governing body
Alaska Department of Labor and Workforce Development, Mechanical Inspection Section unconfirmed
Statute citation
Alaska Statutes Title 18, Chapter 60 Boilers and Unfired Pressure Vessels 18.60.180
Power boiler inspection interval
certificate inspection annually; external inspection while under pressure, or internal inspection as warranted unconfirmed
Low-pressure boiler inspection interval
certificate inspection every two years with an internal inspection every four years if construction permits unconfirmed
Pressure vessel inspection interval
inspected internally and externally at intervals set by the Department of Labor and Workforce Development unconfirmed
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 unconfirmed
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 unconfirmed
Sourcenationalboard.org
Verified2026-08-05
Review by2027-08-05
DatasetUS boiler and pressure vessel inspection requirements by state

Values marked unconfirmed are shown, but we could not tie them to the quote below: Accepted inspector types, Exemptions, Governing body, Low-pressure boiler inspection interval, Power boiler inspection interval, Pressure vessel inspection interval. Read the quote and judge them yourself.

What the source says

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

nationalboard.org, retrieved 2026-08-05

Source

Last verified against source: 2026-08-05. Scheduled for re-check by: 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.