North Dakota Administrative Code
Title 33.1 - Department of Environmental Quality
Article 33.1-14 - NORTH DAKOTA BOILER RULES
Chapter 33.1-14-05 - POWER BOILERS - EXISTING INSTALLATIONS
Section 33.1-14-05-10 - Capacity

1. The minimum safety valve or safety relief valve relieving capacity for all high-pressure boilers other than steam traction engines must be determined by the edition of the American Society of Mechanical Engineers Code, section 1, referenced in this article or by the requirements of the American Society of Mechanical Engineers Code, section 1, to which the boiler they are installed was constructed.

2. The minimum safety valve relieving capacity for steam traction engines must be determined using the edition of the National Board Inspection Code referenced in this article.