Historical boilers shall require an initial Certificate Inspection by an Authorized Inspector in accordance with The National Board Inspection Code, followed by a Certificate Inspection every three years thereafter if stored inside a shelter, or annually if stored outdoors. The initial Certificate Inspection shall include ultrasonic thickness testing of all pressure boundaries. Thinning of the pressure retaining boundary shall be monitored and recorded on the inspection report.

Historical Note

New Section made by final rulemaking at 15 A.A.R. 1496, effective August 18, 2009 (Supp. 09-3). Amended by final rulemaking at 28 A.A.R. 3952 (December 30, 2022), with an immediate effective date of December 7, 2022 (Supp. 22-4).