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   (en Español) and NB-381, Quality Program for Inspection Organizations  (en Español), and are acceptable to the jurisdictional authority where the owner-user is located.

Organizations seeking PROVISIONAL accreditation by the National Board should:

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


Information about Federal Inspection Agencies (FIA) can be found under Authorized Inspection Agencies.