If, in the judgment of the inspector of the division or of the insurance company, it is advisable to apply a hydrostatic pressure test to a boiler, the owner or user shall prepare the boiler for such test, as directed by the inspector of the division or by the insurance company.
Mass. Gen. Laws ch. 146, § 31
Hydrostatic pressure test
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.