A-20.01, r. 1 - Regulation respecting pressure vessels

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30. A pressure vessel not mentioned in Schedule 1 must undergo an external inspection at least once every 4 years, or within the period established by the inspector.
This section does not apply to pressure vessels whose periodic inspection frequency is determined by an inspection program which is part of a quality control program approved in accordance with section 57.
O.C. 2519-82, s. 30; O.C. 1310-91, s. 17.