- The Short Answer: CWS Means Certified Welding Supervisor
- Who Issues the Credential and What It Proves
- How the Two-Part Exam Is Built
- The 11 Examination Objectives and Their Weights
- Why Productivity and Performance Dominates
- Who Qualifies to Sit for It
- Fees and Registration Mechanics
- Open-Book Rules and Reference Pitfalls
- Validity, Renewal, and Ninth-Year Recertification
- Where the Credential Gets Used
- Sequencing Your Preparation Around the Weights
- Frequently Asked Questions
- CWS here means Certified Welding Supervisor, a credential issued by the American Welding Society (AWS).
- The exam has two open-book, computer-based parts at Prometric: Part A and Part B, each requiring at least 70%.
- Productivity and Performance is the largest published objective at 30% and is the only one tied to Part B.
- Eligibility is a high-school diploma plus three years of qualifying practical welding experience; teaching can substitute for one year.
The Short Answer: CWS Means Certified Welding Supervisor
CWS stands for Certified Welding Supervisor. It is a professional credential for people who direct welding work, as opposed to people who simply perform it. The acronym is shared with several unrelated credentials in other industries, so it is worth being precise: everything on this page concerns the welding-industry credential and nothing else. If you arrived looking for a different certification that happens to abbreviate to CWS, this is not that one.
The credential signals that a person understands how welding operations are planned, specified, safeguarded, documented, and kept productive. That is a broader skill set than welding technique. A certified welder proves hands-on ability to produce a sound weld. A Certified Welding Supervisor demonstrates the knowledge needed to make sure a whole shop, crew, or project produces acceptable weldments efficiently, safely, and in line with the governing codes and specifications.
If you want other angles on the same question, our related explainers cover what CWS stands for and the fuller picture of what CWS certification involves. This article is the overview that ties the major pieces together.
Who Issues the Credential and What It Proves
The American Welding Society administers the Certified Welding Supervisor program. The certification requirements are described in the AWS specification for the certification of welding supervisors (QC13:2006), and the current exam logistics appear in the AWS Examination User Guide for the CWS exam. Exams are delivered through Prometric test centers, which means you sit for a proctored, computer-based test rather than a paper exam at an AWS event.
What the certification proves is knowledge, not manual skill. Nobody is asked to strike an arc during the exam. Instead, the questions probe whether you can read drawings and specifications, understand base and welding materials, apply safety requirements, give clear welding instructions, control production practices, interpret inspection requirements, maintain records, and run a welding operation productively. It is a supervisory knowledge credential, and the weighting of the exam reflects that.
How the Two-Part Exam Is Built
The certification requires passing two parts:
- Part A: Fundamentals of Welding Supervision
- Part B: Welding Practices & Economics
Both are computer-based, open-book examinations using four-option multiple-choice questions. Each part allows 2 hours of examination time, and scheduled seat time is 2.5 hours per part, which accounts for check-in and tutorial overhead. Across the two parts, total examination time is 4 hours. Each part requires a score of at least 70%.
| Feature | Part A | Part B |
|---|---|---|
| Title | Fundamentals of Welding Supervision | Welding Practices & Economics |
| Format | Computer-based, open-book, four-option multiple choice | Computer-based, open-book, 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 disagree (see below) |
A Note on Part B Question Counts
Part A is listed at 150 questions. Part B is less clear. The current Examination User Guide lists Part B as 60 items on one printed page and 30 on another, and the AWS QC13:2006 specification also gives 30. Because of that conflict, no combined question total should be treated as settled. Confirm the current figure with AWS when you register, and do not build your pacing plan around an unverified number. Our passing score breakdown covers how the 70% threshold applies to each part.
The 11 Examination Objectives and Their Weights
The published examination objectives are organized into 11 headings. Domains 1 through 10 correspond to Part A, and Domain 11 corresponds to Part B. The weights below come from the current Examination User Guide and are corroborated by QC13:2006, which describes them as approximate percentages. They total 100%. They are exam objectives, not a study curriculum, and they should not be converted into guesses about how many questions each domain contributes.
| # | Objective | 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 |
For a deeper walk through each heading, see our complete guide to all 11 CWS content areas. Here are the points that matter most for understanding what the credential covers.
Drawings, Specifications, and Standards (Domains 2 and 10)
These two objectives together carry 15% and reward candidates who can navigate the documents that govern a job.
- Interpreting welding symbols and drawing conventions
- Understanding how specifications and codes define acceptance requirements
- Knowing how welding standards are generally applied in fabrication
Safety Requirements (Domain 5)
At 10%, safety is one of the heavier Part A objectives and a core supervisory duty.
- Hazards associated with welding, cutting, and brazing processes
- Protective measures and safe work practices a supervisor must enforce
- Safety references available during the open-book exam
Welding Instructions and Production Controls (Domains 6 and 7)
These two 10% objectives cover how work is communicated and kept under control on the floor.
- Translating procedures into clear instructions for welders
- Controlling variables that affect weld quality in production
- Recognizing when practice drifts from the documented procedure
The remaining Part A objectives, Knowledge of Welding Supervision, Base Material and Welding Materials, Welding Equipment and Theory, Welding Inspection, and Work Reports and Records, each carry 5%. Small individual weights do not make them ignorable, since together they make up a substantial slice of Part A.
Why Productivity and Performance Dominates
The single most striking feature of the objective table is Domain 11. Productivity and Performance is published at 30%, the largest category by a wide margin, and it is the only domain mapped to Part B, Welding Practices & Economics. That mapping says something about the credential's identity: it is not only about welding correctly, it is about running welding as an economic activity.
Candidates who come from a strong technical background sometimes underestimate this. They study materials, processes, and symbols thoroughly and then meet Part B with less preparation in the cost and efficiency side of welding. Because Part B is scored on its own against the 70% threshold, weakness there can block certification even when Part A goes well.
Key Takeaway
Treat Part B as its own exam, not an afterthought. The 30% objective is the biggest published category, and because each part needs at least 70% independently, a strong Part A cannot compensate for an unprepared Part B.
If you are weighing how demanding this is overall, our difficulty guide discusses where candidates tend to struggle.
Who Qualifies to Sit for It
AWS sets baseline eligibility requirements:
- 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 described as preferred rather than mandatory, and formal preparation training is optional. In other words, you do not have to complete a course to qualify, though many candidates use one.
The current examination guide also asks for visual-acuity documentation, a detail candidates sometimes miss until late in the process. Our requirements guide goes through eligibility and documentation in more detail, and you should confirm the exact paperwork directly with AWS before scheduling.
Fees and Registration Mechanics
The 2026 initial examination fee, including Prometric seat fees, is:
| Item | Member | Nonmember |
|---|---|---|
| Initial examination (both parts) | $665 | $756 |
| Retest, per part | $445 | $445 |
| Retest, both parts | $650 | $650 |
| Renewal | $425 | $516 |
| Ninth-year recertification by PDHs | $455 | $546 |
| Ninth-year recertification by examination | $615 | $706 |
The nonmember initial price includes one year of AWS Individual Membership, which narrows the practical gap between the two paths. Retest fees are the same for members and nonmembers. Because retakes are priced per part, failing only one part is meaningfully cheaper than repeating both. For the full financial picture, including how the numbers fit together, see our pricing breakdown.
For scheduling windows and deadlines, check our exam dates guide alongside the official Prometric scheduling flow.
Open-Book Rules and Reference Pitfalls
Open-book does not mean unprepared. The reference rules are strict, and the time limit makes it impractical to look up every answer.
- 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.
- Digital references are supplied during the exam, except for the AWS Welding Handbook series.
A practical way to use an open-book format is to know your references well enough to find things quickly. Tab and annotate in ways that comply with the bound-reference rules, and practice locating answers under time pressure. Our cheat sheet is useful for the facts you should know cold rather than look up.
Validity, Renewal, and Ninth-Year Recertification
The certification is valid for three years. Renewals occur at years 3 and 6 and are based on documented continued welding-supervisor activity. At year 9, recertification requires continued-activity documentation plus one of two routes: passing both examination parts again, or earning 80 professional development hours (PDHs) over the nine years, including at least 20 in the final three years.
That structure rewards people who stay active in supervision and keep their learning documented. If you plan to choose the PDH route at year 9, start tracking hours early rather than reconstructing them later.
Where the Credential Gets Used
The CWS is relevant wherever welding is managed as part of fabrication or construction work governed by codes and specifications. Typical settings include fabrication shops, manufacturing plants, construction and structural work, pressure equipment and piping, shipbuilding and heavy industry, and maintenance and repair operations. The people who benefit most are working foremen, lead hands, welding supervisors, production managers with welding responsibility, and technically minded people moving from the welder's position into oversight.
Employers and project owners may value the credential as evidence that a supervisor understands both quality and productivity. Whether it translates into a pay premium depends on your employer and region, and we avoid quoting specific figures here. For the earnings discussion, see our salary guide, our review of CWS jobs, and our return-on-investment analysis.
Sequencing Your Preparation Around the Weights
You do not need an elaborate method, but the objective weights suggest a sensible order. The plan below is a sketch, not a prescription, and should flex with your background.
Documents and Safety
- Drawings and specifications (Domain 2) and standards (Domain 10)
- Safety requirements (Domain 5) using your approved references
Floor-Level Practice
- Welding instructions (Domain 6) and production controls (Domain 7)
- Materials, processes, inspection, and records (Domains 3, 4, 8, 9)
Part B Focus
- Productivity and Performance (Domain 11), the heaviest objective
- Timed practice with your bound references and approved calculator
Put the heavy Part B material in its own block rather than squeezing it in at the end, because it carries the most weight and is scored separately. Take timed practice sets on our CWS practice test to check that you can find answers in your references within the time limit, and revisit weak domains on the main practice site. For a more complete plan, our study guide expands on this approach, and the training overview covers optional formal courses.
Frequently Asked Questions
In this context, CWS stands for Certified Welding Supervisor, a credential offered by the American Welding Society. It certifies knowledge of welding supervision, not welding performance.
Two. Part A is Fundamentals of Welding Supervision and Part B is Welding Practices & Economics. Both are computer-based, open-book, and require at least 70%, with 2 hours of exam time each.
Productivity and Performance, at 30%. It is the only objective tied to Part B, and the published weights are approximate percentages rather than guaranteed question allocations.
A high-school diploma or approved equivalent and three years of qualifying practical welding experience. Three years of documented relevant teaching can substitute for one year of experience, and supervision experience is preferred but not required.
Three years, with renewals at years 3 and 6 based on documented supervisor activity. Year 9 recertification requires continued-activity documentation plus passing both parts or earning 80 PDHs over nine years.