Paragraph 58

No new steam boiler shall be taken into use at a mine unless there has been obtained from the manufacturer thereof or some other competent person a certificate stating the nature of any tests to which the boiler and its fittings and attachments have been submitted and specifying the maximum permissible working pressure thereof and the boiler is so marked as to enable it to be identified as the boiler to which the certificate relates.

Every such certificate shall be preserved until the expiration of three years after the date on which it was given.