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Examination Information



National Board Inservice Inspector Commission Examination
 
The Inservice Inspector Commission examination reflects inspection situations related to installation and inservice. The examination consists of 85 questions and is administered in one day. NB-331-I, Body of Knowledge for Inservice Inspectors, provides the inspector candidate with specific areas of knowledge that may be included on the Inservice Inspector Commission Examination. 
 
The Inservice Inspector Commission examination is offered as follows:
 
 

National Board Authorized Inspector Commission Examination
 
The Authorized Inspector Commission examination reflects inspection situations related to boilers, pressure vessels and other pressure equipment being constructed in accordance with the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME BPV Code). The examination consists of 85 questions and is administered on the last day of the Authorized Inspector Commission Course (AI).
 
A candidate for a National Board Authorized Inspector Commission must attend the National Board Authorized Inspector Commission Course (AI) and receive a passing grade on the examination. The schedule for AI classes may be found on the Classroom Training Courses page. NB-331-NC, Body of Knowledge for Authorized Inspectors, provides the inspector candidate with specific areas of knowledge that will be included on the "AI" Commission Examination. See also NB-424, Candidate Handbook for the Authorized Inspector Commission Examination.
 
 

National Board Commission Endorsement Examinations
 
A candidate for a Commission endorsement must attend the appropriate course and receive a passing grade on the examination. The schedule for endorsement courses may be found on the Classroom Training Courses page. For each endorsement, there is a Candidate Handbook and a Body of Knowledge as shown below:
 

B Endorsement
     NB-428, Candidate Handbook for the Authorized Inspector Supervisor Examination
     NB-429, Body of Knowledge for Authorized Inspector Supervisors

O Endorsement
     NB-339, Candidate Handbook for the Owner-User Inspector Supervisor Examination
     NB-466, Body of Knowledge for Owner-User Inspector Supervisor (coming soon)

R Endorsement
     NB-465, Candidate Handbook for the Repair Inspector Examination
     NB-464, Body of Knowledge for Repair Inspectors

N Endorsement
     NB-425, Candidate Handbook for the Authorized Nuclear Inspector Examination
     NB-427, Body of Knowledge for Authorized Nuclear Inspectors

I Endorsement
     NB-432, Candidate Handbook for the Authorized Nuclear Inservice Inspector Examination
     NB-433, Body of Knowledge for Authorized Nuclear Inservice Inspectors

C Endorsement
     NB-434, Candidate Handbook for the Authorized Nuclear Inspector – Concrete Examination
     NB-435, Body of Knowledge for Authorized Nuclear Inspectors (Concrete)

NS Endorsement (Includes NSI and NSC)
     NB-430, Candidate Handbook for the Authorized Nuclear Inspector Supervisor Examination
     NB-431, Body of Knowledge for Authorized Nuclear Inspector Supervisors