- Which CWS This Is (and Why It Matters)
- The Exam at a Glance
- Domain Weights on One Screen
- High-Value Topics by Domain
- Open-Book Rules: Bring References That Get You Through the Door
- Fee and Renewal Numbers to Memorize
- Eligibility and Certification Lifecycle
- Three Things to Confirm Before You Schedule
- Scheduling Your Review Around the Weights
- Quick-Answer FAQ
- CWS here means Certified Welding Supervisor from the American Welding Society, tested in two open-book parts: Part A and Part B.
- Each part gives 2 hours of exam time and requires at least 70%; Part A has 150 four-option questions.
- Productivity and Performance carries 30%, the heaviest published objective, and it is the only domain assigned to Part B.
- The 2026 initial fee is $665 for eligible members or $756 for nonmembers, with Prometric seat fees included.
Which CWS This Is (and Why It Matters)
The acronym "CWS" is shared by several unrelated credentials, so a one-page review only helps if it covers the right one. This cheat sheet covers the Certified Welding Supervisor credential offered by the American Welding Society (AWS). It is a professional certification for people who supervise welding work: those responsible for making sure weldments are fabricated to code, specification and schedule, and for the people and records behind that work.
If you are still orienting yourself on the terminology, our explainers on what CWS is and what CWS stands for cover the basics. This article is the compressed version for candidates who already know the credential and want every must-know fact in one place.
The Exam at a Glance
The certification requires passing two separate computer-based examinations, both delivered at Prometric test centers. Both are open-book, and both use four-option multiple-choice questions.
| Item | Part A | Part B |
|---|---|---|
| Title | Fundamentals of Welding Supervision | Welding Practices & Economics |
| Delivery | Computer-based, Prometric, open-book | Computer-based, Prometric, open-book |
| Question format | Four-option multiple choice | Four-option multiple choice |
| Exam time | 2 hours | 2 hours |
| Scheduled seat time | 2.5 hours | 2.5 hours |
| Minimum to pass | 70% | 70% |
| Question count | 150 | Published sources conflict (30 vs. 60) |
| Exam domains covered | Domains 1-10 | Domain 11 |
Total examination time across both parts is 4 hours. Because the seat time per part is longer than the exam clock, expect the extra 30 minutes to cover check-in and orientation rather than additional testing time.
For more on how demanding the format feels in practice, see How Hard Is the CWS Exam?, and for the scoring threshold in detail, read CWS Passing Score 2026.
Domain Weights on One Screen
The exam objectives come in 11 headings. Domains 1 through 10 correspond to Part A, and Domain 11 corresponds to Part B. The weights below are approximate percentages from the current Examination User Guide (footer version 05.06.2026), corroborated by AWS QC13:2006 clause 6.2. They are formal exam objectives, not preparation-curriculum headings, and they total 100%.
| # | Domain | Weight | Part |
|---|---|---|---|
| 1 | Knowledge of Welding Supervision | 5% | A |
| 2 | Understanding of Drawings and Specifications | 10% | A |
| 3 | Knowledge of Base Material and Welding Materials | 5% | A |
| 4 | Familiarity with Welding, Brazing, Cutting, Equipment, Theory and Application | 5% | A |
| 5 | Knowledge of Safety Requirements | 10% | A |
| 6 | Welding Instructions | 10% | A |
| 7 | Knowledge of Welding Practices and Production Controls | 10% | A |
| 8 | Welding Inspection | 5% | A |
| 9 | Work Reports and Records | 5% | A |
| 10 | Understanding the General Applications of Welding Standards | 5% | A |
| 11 | Productivity and Performance | 30% | B |
A full walkthrough of what each heading covers lives in CWS Exam Domains 2026: Complete Guide to All 11 Content Areas.
High-Value Topics by Domain
The domain names themselves tell you what a welding supervisor is expected to master. Here is the practical reading of each cluster.
Productivity and Performance (30%)
Domain 11: Productivity and Performance
This is the economics half of the credential, tested in Part B (Welding Practices & Economics). It rewards candidates who can think like a supervisor accountable for output and cost, not just technique.
- Know how process choice, joint design and deposition efficiency influence the cost and speed of a weldment.
- Be comfortable with cost-estimating calculations; an approved calculator is allowed, so practice working through problems with the calculator you will actually bring.
- Understand how rework, scrap and poor planning erode productivity, and how supervisors reduce them.
- Practice looking things up fast in your permitted references, since this domain is as much about applying formulas as recalling them.
Drawings, Instructions and Controls (30% combined)
Domains 2, 6 and 7: Drawings and Specifications, Welding Instructions, Practices and Production Controls
Each carries 10%, together matching Domain 11 in weight. These domains cover the daily mechanics of getting a weld made correctly.
- Read welding symbols and drawing notes accurately, and tie them back to governing specifications.
- Understand how welding procedures are communicated to welders, including what instructions a supervisor must make sure are followed.
- Know the production controls that keep work consistent: parameter control, material handling, and verification steps.
Safety Requirements (10%)
Domain 5: Knowledge of Safety Requirements
Safety is worth the same weight as drawings or instructions, and it is a domain where open-book access to ANSI Z49.1 is directly useful.
- Know where to find fire prevention, ventilation, fume exposure and protective equipment guidance in your reference.
- Understand a supervisor's responsibility for enforcing safe practices, not just knowing them.
The 5% Cluster
Six domains are each worth 5%: Welding Supervision (1), Base and Welding Materials (3), Welding/Brazing/Cutting Equipment, Theory and Application (4), Welding Inspection (8), Work Reports and Records (9), and General Applications of Welding Standards (10). Individually small, together they are 30% of the published weighting. Do not skip them; breadth matters in Part A because it spans ten objectives.
- Welding Supervision: the role itself, responsibilities, and how supervisors interact with management, inspectors and welders.
- Base and welding materials: material properties, filler metal selection logic, and storage and handling concepts.
- Equipment, theory and application: how welding, brazing and cutting processes work and where each is applied.
- Welding inspection: what inspection catches, how it is documented, and a supervisor's role in acceptance and rework.
- Work reports and records: what must be documented and why traceability matters.
- General applications of welding standards: knowing which standard governs which kind of work and how to navigate it.
Open-Book Rules: Bring References That Get You Through the Door
Open-book does not mean unprepared. The reference rules are strict, and breaking them can derail your appointment before you answer a single question.
- Original copies only: permitted references must be original, not photocopies.
- Permanent binding: they must be permanently bound or securely fastened through all pages. Loose sheets are prohibited.
- Calculators: four-function, construction and nonprogrammable scientific models are approved.
- Digital references: supplied for most titles, with the exception of the AWS Welding Handbook series, which you must plan for separately.
- Visual acuity: the current examination guide requests visual-acuity documentation, so handle that paperwork early.
Fee and Renewal Numbers to Memorize
All figures below come from the 2026 AWS price list. Member pricing applies to eligible AWS members; the nonmember initial price includes one year of AWS Individual Membership.
| Item | Member | Nonmember |
|---|---|---|
| Initial examination (includes Prometric seat fees) | $665 | $756 |
| Retest, one part | $445 | $445 |
| Retest, both parts | $650 | $650 |
| Renewal (years 3 and 6) | $425 | $516 |
| Ninth-year recertification by PDHs | $455 | $546 |
| Ninth-year recertification by examination | $615 | $706 |
Notice that retest pricing is the same for members and nonmembers. If you expect to need a second attempt on only one part, the single-part retest is meaningfully cheaper than repeating both. For the full pricing logic and budgeting advice, see CWS Certification Cost 2026: Complete Pricing Breakdown.
Eligibility and Certification Lifecycle
Who Can Sit the Exam
- A high-school diploma or approved equivalent.
- Three years of qualifying practical welding experience involving weldments fabricated to codes, specifications or other standards.
- Three years of documented relevant teaching may substitute for one year of the practical experience requirement.
- Two years of welding-supervision experience is preferred, but not listed as mandatory.
- Formal preparation training is optional.
The full qualification pathway is covered in CWS Requirements 2026: Eligibility, Prerequisites & How to Qualify.
How Long It Lasts
- Validity: three years per cycle.
- Renewals at years 3 and 6: based on documented continued welding-supervisor activity.
- Ninth-year recertification: requires continued-activity documentation plus either passing both exam parts or earning 80 PDHs over the nine years, including at least 20 in the final three years.
Key Takeaway
The PDH route to ninth-year recertification rewards steady activity: 80 PDHs across nine years, with at least 20 in the last three. Track professional development hours from day one so you are not scrambling in year eight.
Three Things to Confirm Before You Schedule
Published AWS materials are not perfectly consistent, and a good cheat sheet is honest about that. Verify these items directly with AWS or your Prometric confirmation:
- Part B question count. The current guide lists both 60 and 30 items on different pages, and QC13:2006 specifies 30. Do not assume a number; plan your pacing to be comfortable regardless.
- ANSI Z49.1 edition. The examination guide lists the 2005 edition, while the program webpage lists the 2012 edition. Confirm which approved edition applies before you buy and tab your reference.
- Task grouping versus exam objectives. AWS B5.9:2006 Annex A groups tasks differently from the exam objectives in the current guide. For exam prep, study to the 11 objectives above, not the older annex grouping.
To pin down testing windows and deadlines, check CWS Exam Dates 2026 alongside your Prometric scheduling portal.
Scheduling Your Review Around the Weights
You do not need a generic plan; you need one that follows where the points sit. Here is a compact sequence built around the CWS domains, assuming you attempt Part A first.
Reference Setup and Safety
- Confirm the approved ANSI Z49.1 edition, then bind and tab your references.
- Work through Domain 5 (Safety), since it ties directly to a reference you will lean on.
The 10% Block
- Drawings and Specifications (Domain 2), Welding Instructions (Domain 6), Practices and Production Controls (Domain 7).
- Practice reading symbols and locating answers quickly.
The 5% Cluster
- Domains 1, 3, 4, 8, 9 and 10: skim for breadth, then drill weak spots.
- Take a full-length timed Part A practice run against the 150-question format.
Part B: Economics and Productivity
- Domain 11 calculations with your approved calculator.
- Timed practice sessions focused on finding formulas fast in an open-book setting.
For a broader planning framework, see the CWS Study Guide 2026, and when you are ready to pressure-test your recall, run a timed set on the CWS practice test.
Quick-Answer FAQ
Two: Part A (Fundamentals of Welding Supervision) and Part B (Welding Practices & Economics). Both are computer-based, open-book exams at Prometric test centers, each with 2 hours of exam time and a 70% minimum to pass.
Productivity and Performance (Domain 11) at 30%, the largest published category. It is the only domain mapped to Part B. The weights are approximate and have not been converted into question allocations.
No. Permitted references must be original and either permanently bound or securely fastened through all pages. Loose sheets are prohibited. Approved calculators include four-function, construction and nonprogrammable scientific models.
The initial fee is $665 for eligible members and $756 for nonmembers, including Prometric seat fees. The nonmember price includes one year of AWS Individual Membership. Retests are $445 per part or $650 for both parts.
It is valid for three years, with renewals at years 3 and 6 based on documented continued welding-supervisor activity. At year nine, you need continued-activity documentation plus either passing both exam parts or earning 80 PDHs over nine years, with at least 20 in the final three.
If you are weighing whether the investment makes sense for your career, our analysis in Is the CWS Certification Worth It? and the CWS Salary Guide break down the career picture, and the CWS pass rate article explains what is and is not publicly known about outcomes. When you are ready to test yourself against the format, start with the CWS Exam Prep practice tests.