Section 041-21-2 - Expiration of Inspection CertificatesA.Date of Expiration(1)Boilers. Annual inspection certificates for boilers expire on the last day of the month when the unit was last inspected and expire annually thereafter on the last day of that month unless the owner petitions the Chief Inspector to change the month of inspection on a form provided by the Board.(2)Pressure Vessels. Triennial inspection certificates for pressure vessels expire on the last day of the month when the unit was last inspected and expire every three years thereafter on the last day of the month unless the owner petitions the Chief Inspector to change the month of inspection on a form provided by the Board.B.Suspension of Operation. If an inspection report has not been submitted to the Board within 60 days of the expiration of the most recent inspection certificate, or if the owner has not paid the inspection certificate fee within 60 days after receiving notification that the inspection report has been received by the Board, or if repairs to a boiler or pressure vessel are not made within the time prescribed by the Board or the Chief Inspector, the owner must suspend operation of the boiler or pressure vessel until the Board issues a new inspection certificate.02-041 C.M.R. ch. 21, § 2