CWI Part C with D1.1: on-screen PDF, no word search
Part C tests whether you can apply a welding code, and for most candidates that code is AWS D1.1. It is open book, but the book is a PDF on the test-center screen with word search switched off. AWS's own D1.1 endorsement description also allows a bound printed copy. Either way, the skill being tested is finding the right clause quickly and reading it correctly.
- Questions
- 55
- Time
- 135 minutes
- Exam fee
- Included in initial CWI exam fee ($1,255/$1,520). As a stand-alone D1.1 endorsement: $445 member / $540 non-member. Part C retest: $445.
- Where
- Prometric CBT. The D1.1 codebook is provided as an on-screen PDF (word search disabled; learn the bookmarks). A bound printed D1.1 copy is also permitted (D1.1 endorsement description Rev 10.14.2025 and AWS Exam References Guide 1 Aug 2025).
What the domains mean in practice
- Qualification, fabrication and inspection are at least 25% each: procedure and welder qualification, workmanship and fabrication requirements, and inspection and acceptance criteria.
- Reports and records and materials and design make up smaller shares.
How to prepare
- Learn the layout of your D1.1 edition: which clause covers design, prequalification, qualification, fabrication and inspection, and how the tables and annexes are organised. Use bookmarks the way you will on exam day.
- Take the free check and time yourself on each question. Speed at finding a clause matters as much as knowing the answer.
- Use the edition your exam uses. Tests in 2026 use D1.1:2025, and a retest must use the same code as your original exam.
- We cite clause numbers only and never reproduce D1.1 text. Use your own licensed copy.
Exam facts
| Questions | 55 |
| Time | 135 minutes |
| Book | open book; D1.1 PDF provided on screen (English only), bookmarks usable, word search NOT enabled; printed bound copy also permitted for D1.1 per the endorsement description |
| Passing | 72% |
| Where you test | Prometric CBT. The D1.1 codebook is provided as an on-screen PDF (word search disabled; learn the bookmarks). A bound printed D1.1 copy is also permitted (D1.1 endorsement description Rev 10.14.2025 and AWS Exam References Guide 1 Aug 2025). |
| Code edition | AWS D1.1/D1.1M:2025 (2020 edition accepted only through 31 Dec 2025; 2026 retests 2025 edition only) |
| Exam fee | Included in initial CWI exam fee ($1,255/$1,520). As a stand-alone D1.1 endorsement: $445 member / $540 non-member. Part C retest: $445. |
| Retakes | Must retest with the same code within the 3-year retest period; general CWI retest limits apply (3 retests in 3 years; training for 2nd/3rd) |
What the exam covers
| Qualification | at least 25% |
| Fabrication | at least 25% |
| Inspection | at least 25% |
| Reports and Records | at least 5% |
| Materials and Design | at least 5% |
These published minimums total 85%; the remaining 15% is unallocated across domains.
Sources
Show the 3 official sources
- aws-p-001-delivery.sitecorecontenthub.cloud/api/public/content/D1.1-endorsement (checked 2026-10-17)
- aws.org/Certification-and-Education/Program-Price-List/ (checked 2026-10-17)
- aws-p-001-delivery.sitecorecontenthub.cloud/api/public/content/CWI-Examination-User-Guide (checked 2026-10-17)
Facts checked 17 October 2026 against American Welding Society's own documents (sources above). If something has changed, tell us and we will correct it within 2 business days.
Your next step
- 01Free CWI Part C D1.1 diagnostic25 questions, about 61 minutes. See your weakest domain.Start free
- 02Part C (D1.1) course with code-navigation trainer$99. Lessons, timed practice exams and a plan around your exam date.See the plans
The CWI Part C D1.1 course
Available now · instant accessLearn how D1.1 is laid out, drill finding clauses fast, then practice.
- 9modules of lessonsEvery task on the outline
- 2full-length timed exams55 questions in 135 minutes each
- 160practice questionsEach one explained
- 35code-navigation drillsFind it fast in AWS D1.1
- 1week-by-week study planSet to your exam date
Question bank and timed exams: Expert-reviewed: every question was checked by a CWI with 15 years in structural welding (2026-10-19). Every answer key is confirmed by a separate blind solve, and reported errors are fixed within 2 business days.