national board pressure vessel certification

Even if you know it is being installed in an area where the jurisdiction does not require NB registration, many insurance companies will require NB registration or they will not insure.

However, unless it is a small and inexpensive vessel unlikely to be repaired or altered, this is usually not a good idea. It is perfectly acceptable to build an ASME U stamped vessel without a NB number and without registering the data report. (or other ASME Construction Code certificate). The NB will give you this for no charge if you apply and show them your Section VIII Div.

Any U stamped vessel can be registered with the National Board if the Certificate holder has the authority to register. It allows for an easy and permanent method to get a copy of the data report for repairs and alterations once installed, and to track repair and alteration forms if sent to the NB with the correct documentation. Most US Jurisdictions (states and large cities), and all Canadian provinces, require pressure vessels installed in their areas to be registered with the National Board.

National board pressure vessel certification