The ASME Boiler and Pressure Vessel Code is published every three years. It has been adopted in 46
states in the USA, numerous municipalities, all provinces in Canada (see CSA B.51) and is used in
several other countries. Addenda are published regularly to maintain an updated status of the code.
For general information, the following are the 11 sections of the ANSI/ASME Boiler and Pressure
Vessel Code:
I) Power Boilers
II) Material Specifications
Part A – Ferrous Materials
Part B – Nonferrous Materials
Part C – Welding Rods, Electrodes and Filler Metals
III) Subsection NCA – General Requirements for Division 1 and Division 2
Division 1 Subsection NB – Class 1 Components
Subsection NC – Class 2 Components
Subsection ND – Class 3 Components
Subsection NE – Class MC Components
Subsection NF – Component Supports
Subsection NG – Core Support Structures
Appendices
Division 2 Code for Concrete Reactor Vessels and Containments
IV) Heating Boilers
V) Nondestructive Examination
VI) Recommended Rules for Care and Operation of Heating Boilers
VII) Recommended Rules for Care of Power Boilers
VIII) Pressure Vessels
Division 1
Division 2 – Alternate Rules
IX) Welding and Brazing Qualifications
X) Fiberglass-Reinforced Plastic Pressure Vessels
XI) Rules for Inservice Inspection of Nuclear Power Plant Components