CWI Online
Training Course

Start Learning Today $1,197
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✓ 90%+ Pass Rate✓ Pass-Support Guarantee✓ 1-to-1 Expert Coaching✓ 10,000+ Inspectors Certified
Matt Owens, CWI, MSIwith Matt Owens, CWI, MSI
  • Great Reviews:
    Check out what people are saying about us on other sites.
  • Time-Tested Course:
    I've been running this course since 2017 and have helped many people prepare for the CWI exam.
  • Personal Coaching:
    Every page on the course has a chat button. Simply click it if you have any questions. I'll reply within 48 hours. Learn how coaching works and see actual coaching conversations.
  • Flashcard Review System:
    The system creates flashcards from missed quiz and practice test questions, then schedules reviews to help you master the difficult concepts.
American Welding Society (AWS)
AWS
Training
Log

Approved by AWS for CWI retest hours, 9-year renewal and PDHs.

Download the AWS 40-hour training log (PDF)
CWI Full
80 Hours
CWI-A
30 Hours
CWI-B
25 Hours
CWI-C
25 Hours

Personal Coaching

Matt Owens, CWI, MSI
Matt Owens, CWI, MSI
CWI Instructor & Technical Expert

I'm Matt — I passed the CWI exam on my first try in 2010 and have spent over a decade helping others do the same. I built this course from real-world inspection experience, not just textbook theory.

Since founding my consulting firm in 2016, I've hired and mentored dozens of CWIs. I know exactly what the exam tests and how to get you ready for it.

You're not doing this alone. I'm your personal coach — message me anytime you're stuck. Check out some real conversations with my students right here to see how I help.

Real Coaching Conversations

Here's what 1-to-1 coaching looks like with our students

Maximum qualified base metal thickness for a WPS
note b max qualified base metal is 1.1. how are you getting 2 inches
The question is: "What is the maximum qualified base metal thickness for a WPS if the test weldment base metal thickness is 1 inch and the specimen was welded with GMAW-S?"
Answer 1: 2 inches Answer 2: 1.33 inches Answer 3: 1 inch Answer 4: 3 inches Answer 5: Unlimited
The correct answer is: Answer 1.
My answer was: Answer 3.
Matt Owens
Hi, Luther. Remember though that note b only applies when the base metal thickness is 1/2" or less. For more than that, we follow Table 7, which says 2T. 2 x 1 inch (base metal thickness) is 2 inches qualified. 👍
👍
The line of a weld symbol that is perpendicular
I don't understand this question on the practice exam: "The line of a weld symbol that is perpendicular to the reference line is always drawn:" Would you please explain what that means?
Matt Owens
Hey, Sam. If you look at a fillet weld or groove weld symbol, then you'll notice that the vertical line is on the left side of the symbol rather then the right.
I think I understand what you're saying. So they have vertical line, is he referring to the line within the weld symbol? For example the welding symbol for the bevel and J weld has a vertical line within the weld symbol. Am I following you?
Matt Owens
Yep, that's exactly it.
Thank you sir.

Full Course Includes

Training Hours

80 Hours

180 Day Course Access

180 Day Course Access

Visual Online Curriculum

Visual Online Curriculum

Flashcard Review System

Flashcard Review System

Coaching

Personal Coaching & Pass-Support Guarantee

Quizzes and Tests

Targeted Quizzes & Practice Tests

Audio Instruction

Insightful Audio Instruction

Photos, Graphics, and Illustrations

Photos, Graphics, & Illustrations

tabletlaptopsmartphone

Study anywhere — works on all your devices

User Reviews

“
Update on A and C, Waiting on B

Just wanted to give an update as i took all my tests the past couple weeks. My projected scores from Prometric on part A was 85% and 97% for part C. Currently waiting on results form part B but i feel confident. Just wanted to reach out and shared that i think your course layout was great! I used it for 7 months to study and I felt very prepared for all tests. I've been a welder/Fabricator for 13 years and i know for a fact that your study material helped me tremendously will filling in voids about material i didnt know. Your code book section made me a wizard for navigation of the book and i don't think i used the index once during the test. I'll keep you updated on my final results!

Update…. I’ve passed and now a CWI!

86* on my part B.

Thank you guys again!

Kyle L.

Concord, CA
“
Thank you and check out these scores.

Hello, I purchased the full cwi course with api 1104 and also the weld replicas. I just wanted to give some feedback. I just received my official score sheet from AWS and passed with an aggregate score of 94%, with a 94% on part A. 97% on part B. And a 91% on part C. I went to a week long part B seminar but I will say without the sicerts part B training I would have not been as successful.

Thanks again for the great program, I'll be using yall for the d1.1 endorsement very soon.

Richard M.

Birmingham, AL
“
Scored Average of 83%

Good day everyone at SI Certs. Just wanted to let you know I took your CWI course and passed my CWI exam with a 83% on my first attempt. You did a great job at explaining everything and I feel like I studied far more in depth than what was required but that is what it takes to make it easier to pass the exam then. Thank you for all you do at putting the course together. Hoping to take the ICC course some time too.

Merle B.

Chicago, IL
“
Passed All 3 Parts First Try

Well I killed it today!!!! Thank you! I felt confident going in. It was still a very tough test, the questions were all over the place. I had to use the index like 3 times which surprised me because I know how to navigate the D1.1. But I am content with that outcome. Part B is what I was worried about. I didn't get to finish all the practice tests because I was at a week long course at Lincoln for it that work had sent me to and I had to test that week. That test was mind blowing; but knowing the BOS beforehand from using your courses had helped tremendously... And just got the update, passed first time!! Just waiting on my letter!!

Lori H.

Ridgeley, WV
“
Proud to share these scores

Hey all I am proud to announce I have passed all of my CWI exams! Cumulative score of 87%! Part A 82%, part B 84%, and part C 96%!

Jonathan U.

Windsor, CO
“
Check Out These Scores!

Good afternoon. I passed my CWI exams. I scored 88% on part a, 84% on part b, and 93% on part c for an average of 88%. I feel I was pretty prepared!

Scott T.

Stockton, CA
“
Passed w/ 85% Average

I just got my results from the CWI exam yesterday. I passed on the first try! I got an 85% average. Your course was excellent. I felt very prepared going in to the test. Thank You!!!

Todd M.

Springfield, IL
“
Almost Seemed Too Easy

I’ve got great news I passed my part B exam with an 86%. Thank you for helping me pass, you guys have a good program it helped me a ton with my confidence. I was the second one in the group to finish compared to the last one to finish the first time I around. It almost seemed too easy, I walked out knowing I passed it!

Dennis M.

Los Angeles, CA
“
This course was on par with how the actual exams would be.

SI Certs was a tremendous benefit to me in studying for and acquiring my CWI. Having access to the material that they provide for 6 months certainly helped me understand how questions would be asked on the actual CWI exams. This course was on par with how the actual exams would be. With the help of their courses, I was able to pass all three of my exams on the first try. They are also great folks to work with. They have been very kind to a coworker of mine with helping to "pause" his 6 month timeline of access to the course when his life became very busy, and they allowed him to "restart" where he left off with the remainder of his 6 month access. That in itself showed that this company is comprised of great people.

Ethan W.

Wendell, NC
“
My scores were awesome
Aaron P.

Gabe -

First I wanted to share that I passed my CWI exam with flying colors. My scores were awesome... Part A - 92%, Part B - 87%, Part C - 98% for a composite score of 92%!!

I also took part in the AWS week long seminar and I can honestly say that without SI Certs prior to that seminar I would have been lost. I was heads above others in the seminar because of what I learned through your platform. I had a very solid understanding of the intricacies of the test, the format of the code book, the necessary inspection tools and the replicas. It really made the seminar more of a review for me while reinforcing what I already learned through SI Certs. All in all, I was very pleased with your program and give credit to SI Certs for my success with the CWI exam.

Thanks again for everything.

Aaron P.

Waunakee, WI
“
Seriously, the best customer service I have EVER experienced

Take the courses!

If you're someone who can study on their own but would like some structure, any SI Certs course is for you. I have purchased all 3 CWI courses and the reinforced concrete course from SI Certs and have passed both the CWI and reinforced concrete exams the first time around. I plan to take another course with SI Certs (PT or masonry) because of the success rate.

Leaving the one week AWS seminar, I felt overwhelmed, even after doing the month long study prep prior to the seminar that AWS provides. I wasn't very confident after taking the part B portion of the exam. Admittedly, I didn't go through much of the SI Certs course for part B.

Side note: You HAVE TO make the time to study folks! Take it from me. Give yourself time, don't rush through the material, and by the end of the SI Certs course, you will be prepared and confident enough to pass any test you're preparing for.

I digress. Since AWS allows you to focus on one portion of the exam at a time now, taking computer-based exams for parts A & C on separate dates, separately from part B, I was able to focus on the other 2 portions of the exam one at a time. I gave myself time to go through the last two SI Certs courses. (Again, ample study time is highly recommended.) Let me tell you! I haven't felt more confident taking an exam as I did taking parts A & C. I scored higher on parts A & C than part B. (I wonder why.) If I may "beat a dead horse," give yourself ample time to comprehend the entire course. The courses are great with the right study behaviors. After taking the CWI exams, I took the reinforced concrete exam. As I said before, I proudly passed that too and plan to take another course with SI Certs.

P.S. Shout out to Gabe and the SI Certs team. Seriously, the best customer service I have EVER experienced.

Alonzo M.

San Jose, CA
“
With my second attempt my score climbed to a 89%

The CWI Exam is tough, but the toughest part for me was the Part B. I attended other training prior to taking the exam and while I achieved a passing score on Part A & C I only scored a 70% on the Part B...I was desperate to pass my Part B on the second attempt but with such a busy schedule my options were very limited. I was really impressed by SI Certs offering online training in conjunction to the Welding Replicas and Toolkit for hands on practice. With my second attempt my score climbed to a 89% and I owe it all to the time I spent practicing with SI Certs' material!

Darrell F.

West Memphis, AR
“
Passed my CWI on the first try

Guys, I can't thank you enough for your CWI training course. I signed up for the course to become a CWI after being in the Machining trade for 15 years. I had limited training in welding and weld practices, and your course made it very easy to study and get up to speed.

Your course was truly what I needed. You provide all the necessary topics and tricks needed to become a CWI. I took the test and I passed on my first time through using the techniques and information provided in your course. I can't thank you enough for making a great course.

Ricky N.

Oakfield, NY
“
Average score 88%

Gabe/Matt...

Just want to tell you that today I have gotten my scores:

Part A: 93%
Part B: 80%
Part C: 92%
Average score 88%.

I really appreciate your help through this time and believe without your course this wouldn't be possible. Thanks a lot!

Jose P.

Tampico, Mexico
“
Yours was the closest thing to the actual part B exam

Hello. I just wanted to say thanks for all of your help. I passed my CWI part B retake with 85%. I believe that of the several online courses that I've taken, yours was the closest thing to the actual part B exam. I would recommend your course to anyone who wants to get their CWI. I will be taking some ICC courses soon and I'll be purchasing them from you.

David B.

United States
“
Average Score 92%

Hello Chris!

I want to share with you that I passed the CWI exam. My scores were:

CWI-Part A 95%
CWI-Part B 85%
CWI-Part C 95%
Average Score 92%

Thank you so much for helping me!

Anibal F.

Mexico
See all reviews →

Pricing Options

CWI Full Training D1.1 Icon

CWI Full Training

AWS D1.1 Code Path

Parts A, B & C · 80 hours · 180 days of access

$1,197
Enroll NowView Course Details →

Part B Add-On

Plastic Weld Replicas & 10-pc Inspection Tools — sold separately

$349$200 refundable
CWI Full Training API 1104 Icon

CWI Full Training

API 1104 Code Path

Parts A, B & C · 80 hours · 180 days of access

$1,197
Enroll NowView Course Details →

Part B Add-On

Plastic Weld Replicas & 10-pc Inspection Tools — sold separately

$349$200 refundable

Or Purchase Individual Parts

CWI Part A Icon

Part A

Welding Fundamentals

30 hours · 90 days of access

$449
Enroll NowDetails →
CWI Part B Icon

Part B

Practical

25 hours · 90 days of access

$449
Enroll NowDetails →

Part B Add-On

Plastic Weld Replicas & 10-pc Inspection Tools — sold separately

$349$200 refundable
CWI Part C Icon

Part C

Code Review (D1.1 or 1104)

25 hours · 90 days of access

$449
Enroll NowDetails →
Secure CheckoutFlexible PaymentsPass-Support Guarantee90%+ Pass Rate

Required References

You'll need the following references for your exam. The test is open-book — purchase your references early so you can study with them.

Choose your code path

AWS D1.1 (2025)

AWS D1.1 (2025)

This code reference can be purchased from AWS. Sometimes you can find used or discounted books on Amazon or eBay.

Purchase Reference →

— OR —

API 1104 (22nd Ed.)

API 1104 (22nd Ed.)

This code reference can be purchased from AWS. Sometimes you can find used or discounted books on Amazon or eBay.

Purchase Reference →

References are not included with the course. Purchase from the links above, Amazon, or eBay.

What Is SI Certs and How Can It Train Me for CWI?
cwi-videoPlay Video
How to Become a CWI
cwi-videoPlay Video

RoadmapCWI Roadmap

Where are you on this roadmap toward your CWI certification? What are the next steps?

We have the answers here.

Learn More
Qualify StepChoose StepStudy StepApply StepTest Step

Why SI Certs?

Traditional week-long classroom seminars cram too much material into too little time. SI Certs' approach lets you learn at your own pace with 80 hours of visual, online instruction — nearly double the classroom — plus personal coaching and practice tests to truly master the codes.

 SI Certs LogoClassroom SeminarOther Online
Hours of Instruction80 Hours45 Hours40–60 Hours
Instructional QualityVisual Online CurriculumInformation OverloadPPT or Video Based
Coaching AccessChat Messaging (6 Months)Very LimitedEmail Only
Access Time180 Days~1 Week3–4 Months
Company Dashboard✓✗✗
Modern Training Platform✓N/A✗

Course Breakdown

CWI Part A Icon

Part A — Welding Fundamentals

Master the CWI Fundamentals of Welding · 30 hours of training

CWI Part B Icon

Part B — Practical

Hands on Training with Plastic Weld Replicas and 10-pc Inspection Tools · 25 hours of training

CWI Part C Icon

Part C — The Code Review

An In-Depth Study and Teaching of AWS D1.1 OR API 1104 · 25 hours of training

Frequently Asked Questions

Ready to Start Your Certification?

Join 10,000+ inspectors certified with SI Certs

Start Learning Today $1,197
✓ 90%+ Pass Rate✓ Pass-Support Guarantee✓ 1-to-1 Expert Coaching✓ 10,000+ Inspectors Certified
CWI Online Training

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