The Certified Welding Inspector (CWI) certification, a prestigious accreditation in the welding industry, mandates candidates pass three exams—Parts A, B, and C—each assessing different welding knowledge and skills areas.
Candidates must achieve a minimum score of 72% on each exam part to obtain the CWI credential.
Candidates will receive a consolidated score report for Parts A, B, and C of the Certified Welding Inspector examination via email approximately two weeks after the completion of Parts A and C. You can view our full seminar and exam schedule here.
Exam Formats
AWS conducts the CWI Part A (Fundamentals) and Part C (Code Book) exams via computer-based testing (CBT) at more than 450 Prometric Exam Centers across the globe. For detailed information on CBT, including a list of testing locations, preparation resources, security procedures, and navigation tutorials, please visit AWS's Computer-Based Testing page.
The practical Part B exam is conducted at various AWS educational seminar locations, both in the U.S. and internationally. For AWS seminars and exams held internationally, you can find contact information and details on the AWS International Agents page.
Part A – Fundamentals Exam
Covers 150 questions on Destructive Testing, Fabrication Math, Safety, Metallurgy, Nondestructive Testing, Welding Symbols, WPS/PQR, and Welding Fundamentals. For additional information access the Examination Information Guide.
Part B – Practical Exam
The Part B Practical Exam for CAWI/CWI consists of hands-on activities using equipment provided by AWS, and 46 questions related to those activities. Activities include:
- Application of WPSs and PQRs
- Use of Inspection Tools and Methods
- Execution of Required Welds
For additional information access the CWI Part B Examination Information Guide.
Part C – Code Book Exam
Part C of the CWI exam is an open-book test that establishes the participant’s ability to locate and understand information in the code book. The 50 to 65 exam questions are based on the code book editions listed below.
Candidates are permitted to bring one of the following code books to the Part C exam:
For additional information access the CWI Part C Examination Information Guide.