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Owner-User Inspection Organizations


An Owner-User Inspection Organization (OUIO) is an owner-user of pressure equipment that maintains an established inspection program and whose organization and inspection procedures meet the requirements of NB-371, Accreditation of Owner-User Inspection Organizations and NB-381, Quality Management Systems for Inspection Organizations, and are acceptable to the jurisdictional authority where the owner-user is located.

Organizations seeking PROVISIONAL accreditation by the National Board should:

  • Complete the NB-111, Application for the National Board Provisional Certificate of Accreditation/Acceptance for Authorized Inspection Agencies (AIAs) and Owner Users (OUIOs). 

Organizations seeking NEW/RENEWAL accreditation by the National Board should:

  • Complete NB-463, Application for the National Board Certificate of Accreditation/Acceptance for Authorized Inspection Agencies (AIA) and Owner Users (OUIO)

Related Documents
  1. NB-105, National Board Certificate of Accreditation Extension Request
  2. NB-111, Application for the NB Provisional Certificate of Accreditation/Acceptance for AIAs and OUIOs
  3. NB-371, Accreditation of Owner-User Inspection Organizations (OUIO)
  4. NB-381, Quality Management Systems for Inspection Organizations
  5. NB-463, Application for the NB Certificate of Accreditation/Acceptance for AIAs and OUIOs
  6. NB-467, National Board Certificate of Accreditation/Acceptance Revision Request Application
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