NQA-1
The ASME quality assurance standard used for nuclear facility work, and the programme a supplier is audited against.
NQA-1 is the ASME standard setting out quality assurance requirements for nuclear facility applications. In practice it describes the programme a supplier runs - how work is controlled, how design and procurement documents are handled, how records are kept, how nonconformances and corrective actions are managed - and it is the document an audit is conducted against.
For a buyer it functions as a filter: whether a supplier holds an NQA-1 compliant programme, and for what scope, is usually the first question in supplier qualification. For a supplier it is an investment decision, because the programme costs real money to build, staff and maintain before it wins any nuclear work at all - which is precisely why the qualified supplier base is much smaller than the capable one.
A programme is not a stamp on a company. It is maintained at named facilities, audited periodically, and can be found deficient, so the useful record carries the scope, the site and the date it was last confirmed rather than a single flag. That distinction is the same one an ASME certificate makes, and it is what allows a component search to return suppliers who can actually do the work.
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.