Scoring, Composite Weighting, Eligibility & Five-Year Renewal

Two Bars, Not One

The single most misunderstood feature of the CWEng is that there are two independent passing requirements, stated in AWS B5.16 Clause 9.5:

1. Each of the four examinations shall not have an individual score less than sixty percent (60%).
2. The weighted composite score from all four shall not be less than seventy percent (70%).

Clearing 60% on every part is therefore necessary but not sufficient. A candidate can pass all four parts individually and still fail to earn the credential because the composite lands below 70%. AWS reports each score rounded down to the nearest lower whole percent, so 59.8% is reported as 59% and fails.

The Composite Weighting Arithmetic

The four raw scores are not averaged. Each is multiplied by a fixed weight from Clause 9.5:

$\text{Composite} = 0.15 S_1 + 0.15 S_2 + 0.30 S_3 + 0.40 S_4$

Parts 3 and 4 together carry 0.70 of the composite. Part 4 alone carries more weight than Parts 1 and 2 combined. That is the single most actionable planning fact in the whole credential: the closed-book science sections must be passed, but the open-book welding sections are where the credential is actually won.

Worked Example: Passing Every Part and Still Failing

A candidate scores Part 1 = 62%, Part 2 = 61%, Part 3 = 68%, Part 4 = 66%. Every part clears the 60% bar.

$\text{Composite} = 0.15(62) + 0.15(61) + 0.30(68) + 0.40(66)$ $= 9.30 + 9.15 + 20.40 + 26.40 = 65.25\%$

Reported as 65% — below the 70% composite requirement. The credential is not awarded. AWS policy allows this candidate to retest any part they choose in order to raise the composite, which is a genuinely strategic decision: because Part 4 carries a 0.40 weight, ten extra points on Part 4 add 4.0 points to the composite, while ten extra points on Part 1 add only 1.5.

Worked Example: The Minimum Viable Profile

Suppose Parts 1 and 2 are both scraped at 60%. What is required of Parts 3 and 4?

$0.15(60) + 0.15(60) = 18.0$

The remaining 52.0 points must come from $0.30 S_3 + 0.40 S_4$. If Part 3 is also 60%, then $0.30(60) = 18.0$, leaving $0.40 S_4 \ge 34.0$, so $S_4 \ge 85%$. A candidate who does the minimum everywhere else needs an 85% on Part 4.

The FE / EIT Substitution (Clause 9.6)

B5.16 Clause 9.6 permits the Engineering Fundamentals Examination — formerly the Engineer-in-Training (EIT) examination, administered by a State Board of Engineering or equivalent government entity — to satisfy the basic and applied science portion of the requirements. When this route is used, the calculation becomes:

$\text{Composite} = 0.30(85) + 0.30 S_3 + 0.40 S_4$

The FE substitution is credited as a fixed 85 multiplied by 0.30, which is 25.5 composite points in place of Parts 1 and 2. That is generous relative to the 18.0 points a candidate earns by scraping both parts at 60%, and it eliminates two closed-book exams. For any candidate who already holds FE certification, this is usually the correct route.

Eligibility: Education and Experience

B5.16 Clause 6.1 defines five combinations, any one of which makes a candidate eligible:

Clause 7.1 defines qualifying experience as activity in manufacturing, fabrication, construction, research and development, or training — so teaching welding technology counts, and so does process development work that never touches a production floor.

Two alternate routes appear in Clause 7:

• Clause 7.2 — an individual holding a State Professional Engineering Licence in Welding Engineering is qualified in accordance with the specification without further evaluation of education, experience or examination.
• Clause 7.3 — an individual holding an International Welding Engineer (IIW) or European Welding Engineer (EWF) diploma needs a minimum of one year of experience, obtainable before or after the diploma, to be eligible for the examination.

Important limitation stated by AWS. Qualification to B5.16 alone may not legally qualify an engineer to provide technical services to the public, and the CWEng designation does not imply the status of a registered Professional Engineer under the laws of any state or other governmental entity.

Renewal and Recertification

The CWEng credential is valid for five years from the date of issue. Renewal under B5.16 Clause 10 requires demonstrated continued education:

• 80 contact hours within the five-year period, or a combination of contact hours plus continuing education units totalling 80 contact hours.
• The education must relate to the welding engineer functions defined in Clause 5 — safety, design, materials and welding metallurgy, quality control and inspection, manufacturing systems, mathematics, physics and chemistry.
• Renewal is submitted through the AWS Certification Application Portal. A 30-day administrative grace period applies after expiration; beyond it, the full application process restarts.

Exam Traps in the Scoring Rules

Trap 1: Averaging the four scores. The composite is a weighted sum with weights 0.15, 0.15, 0.30 and 0.40 — not an arithmetic mean and not an item-count weighting. An unweighted average of the example above gives 64.25%, which is close enough to the correct 65.25% to feel right and is still the wrong method.

Trap 2: Assuming 60% on every part earns the credential. Scoring exactly 60% on all four parts produces a composite of exactly 60%, which fails the 70% requirement outright.

Trap 3: Reading the FE substitution as a pass mark. The 85 in Clause 9.6 is not a score the candidate achieved; it is the fixed credit value the specification assigns to the FE examination, and it is multiplied by 0.30, not 0.15.