Minnesota Administrative Rules
Agency 151 - Labor and Industry Department
Chapter 5225 - BOILERS AND BOATS
INSPECTIONS
Part 5225.2100 - STAMPS ON BOILER AND PRESSURE VESSELS

Every boiler or pressure vessel, unless specifically exempted by Minnesota Statutes, section 326B.988, for use in this state must conform in every detail to the boiler and pressure vessel laws of the state as provided in Minnesota Statutes, chapter 183, and this chapter. Each boiler or pressure vessel must be constructed in compliance with and stamped with the respective American Society of Mechanical Engineers Code Symbol Stamp, or international code symbol accepted by the National Board, and the National Board symbol registration number or the Minnesota Special (MINN. SPC). Stamping must be witnessed by an Authorized Inspector. Information as to construction stamp requirements shall be provided to contractors by the chief boiler inspector. The chief boiler inspector may, at the request of the manufacturer, designate any authorized inspector to make the shop inspection, for which the manufacturer shall pay the required fee pursuant to part 5225.8600, subpart 4, plus travel expenses.

All owners of new or used boilers shall notify the division before the installation is completed. Before the equipment is put into service, hydrostatic testing must be applied to the boiler and appurtenances and witnessed by a commissioned inspector who holds a Minnesota certificate of competency. If the boiler and appurtenances are in conformance with adopted standards, the inspector must file the results with the chief boiler inspector and a certificate of inspection will be issued for that object.

Statutory Authority: MS s 175.171; 183.42; 183.44; 183.465; 183.466; 183.54; 326B.958; 326B.964; 326B.966; 326B.982