ASME N-stamp
An ASME Certificate of Authorization allowing a company to fabricate or install nuclear components within a defined scope.
An N-stamp is shorthand for the ASME Certificate of Authorization that permits a company to fabricate, install, or otherwise work on nuclear components under the ASME Boiler and Pressure Vessel Code. The certificate is issued for a defined scope of activities and is renewed on a survey cycle, so holding one is not a general permission - it is permission for particular work, at a particular facility, for a period.
Two consequences follow for anyone modelling a supply chain. The first is that the certificate is a checkable fact about a company, which makes it one of the few hard edges in supplier qualification. The second is that certificate scope, not company size, is what decides whether a supplier can bid on a given long-lead item.
Stored as a flag on a company record the certificate is close to useless, because every search then returns everyone who has ever been certified for anything. Stored with its scope, its named facility and its confirmation date attached, it becomes the relationship that makes a component query answerable - which is the same reasoning behind the NQA-1 programme record beside it.
Evidence that keeps pace with the decision.
Evaluate Nuclir against the systems, markets, and decisions that matter to your organization. The result is current intelligence with the context needed to use it responsibly.