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CAWI Certification

TL;DR
  • CAWI is one exam line with three separately scored parts: A (165 questions), B (46 questions), C (55 questions).
  • Each part requires at least 60% individually - a high Part A score cannot offset a weak Part B or C.
  • The 2026 initial fee is $1,255 for AWS members or $1,520 for nonmembers, including $120 in seat fees.
  • AWS recommends sitting Part B before Parts A and C.

What the CAWI Credential Actually Covers

The Certified Associate Welding Inspector (CAWI) credential, administered by the American Welding Society (AWS), is not a lightweight preview of the CWI exam or a standalone endorsement you bolt onto another certification. It is the complete initial CAWI examination line, built around AWS D1.1 structural steel as its code-application component. If you've been searching for a shortcut version of the inspector exam, this is the actual credential - full scope, full scoring rules, full documentation requirements.

Because "CAWI" is used by other unrelated credentials in other industries, it's worth being explicit: everything on this page refers to the AWS Certified Associate Welding Inspector program only. If you want a broader orientation before diving into mechanics, our companion pieces on What Is CAWI? and CAWI Meaning cover the terminology in plain language.

The Three-Part Exam Line

CAWI candidates sit three parts, not one appointment. Together they total 266 questions and 390 minutes of active testing time:

  • Part A - Fundamentals: 165 questions (150 scored, 15 unscored pretest items) in 135 minutes, closed-book, delivered via Prometric.
  • Part B - Practical: 46 questions in 120 minutes, paper-based and hands-on, delivered at AWS-authorized sites using supplied specifications, weld replicas, and inspection tools.
  • Part C - D1.1 Code Book: 55 questions (50 scored, 5 unscored pretest items) in 135 minutes, open-book, delivered via Prometric.
Scheduling order matters: AWS instructs candidates to take Part B before Parts A and C. Because Part B is hands-on and administered at limited AWS-authorized sites while A and C run on Prometric's broader network, planning your appointments in that sequence avoids scheduling bottlenecks later.

For a full breakdown of how these three parts fit together content-wise, see CAWI Exam Domains 2026: Complete Guide to All 3 Content Areas.

Domain 1: Part A Fundamentals

Part A - Fundamentals (165 questions, 135 minutes, closed-book)

Part A tests foundational welding knowledge independent of any single code. Published minimum subject allocations within this part include:

  • Definition and Terminology - 12%
  • Welding Processes - 12%
  • Symbols - Welding and NDE - 10%
  • Weld Examination - 10%
  • Welding Performance - 9%
  • Test Methods - NDE - 8%
  • Heat Control & Metallurgy (carbon and low-alloy steel) - 6%
  • Welding Related Calculations - 6%
  • Duties and Responsibilities - 4%
  • Destructive Tests - 3%
  • Cutting - 2%

Note that these are minimum allocations within Part A specifically, not fixed shares of the entire 266-question exam line. AWS's updated B5.1:2025 body of knowledge also reorganizes some of this terminology, combining welding and cutting content under a single "Joining and Cutting Processes" category with a recommended minimum of 14% - a useful signal of where AWS is shifting emphasis even before it fully replaces older subject labels.

Domain 2: Part B Practical

Part B - Practical (46 questions, 120 minutes, hands-on)

Part B is where candidates physically evaluate weld replicas, measure with inspection tools, and interpret supplied specifications and drawings under exam conditions. Minimum allocations:

  • Welding Inspection and Flaws - 34%
  • Procedure and Welder Qualifications - 28%
  • Mechanical Test and Properties - 8%
  • NDE - 8%
  • Utilization of Specification and Drawings - 8%

Notice that Welding Inspection and Flaws and Procedure/Welder Qualifications together account for the majority of Part B's minimum weighting. Candidates who treat Part B as "just a hands-on formality" after cramming Part A theory routinely underestimate how much tool proficiency and flaw-identification speed this part actually demands.

Domain 3: Part C Code Book

Part C - D1.1 Code Book (55 questions, 135 minutes, open-book)

Part C tests your ability to navigate AWS D1.1 structural steel under timed, open-book conditions - not memorized recall, but efficient code lookup. Minimum allocations:

  • Qualification - 25%
  • Fabrication - 25%
  • Inspection - 25%
  • Reports and Records - 5%
  • Materials and Design - 5%

Three subject areas - Qualification, Fabrication, and Inspection - each carry a 25% minimum, meaning Part C rewards candidates who can move fluidly between clause sections rather than those who've only mastered one chapter of D1.1. Because this is open-book, speed of navigation matters as much as comprehension.

Key Takeaway

Treat Part C prep as tab-and-index drilling, not memorization - practice locating clauses under time pressure using the exact D1.1 edition specified for your appointment.

Registration, Fees, and Scheduling Mechanics

The 2026 initial CAWI fee is $1,255 for AWS members or $1,520 for nonmembers. Both figures include $120 in Part A/Part C seat fees, and the nonmember price bundles 3 years of AWS Individual Membership - effectively narrowing the gap between the two tiers once membership value is factored in.

Parts A and C are computer-based and administered through Prometric testing centers. Part B is paper-based and hands-on, delivered only at AWS-authorized sites, which are more limited geographically than Prometric's network. This is the practical reason AWS recommends booking Part B first: it often has narrower availability and lead time than the Prometric-delivered parts.

For the full pricing breakdown, including how the seat fees and membership bundle interact, see CAWI Certification Cost 2026: Complete Pricing Breakdown. For appointment windows and how to sequence bookings across all three parts, check CAWI Exam Dates 2026: Testing Windows, Deadlines & Scheduling.

Registration reminder: Because CAWI is delivered as three separate appointments rather than one sitting, your total testing commitment is 390 minutes spread across A, B, and C - plan travel and study blocks around three distinct dates, not one exam day.

Eligibility Routes and Documentation

CAWI eligibility is built around combinations of education and welding-related experience. Recognized routes include:

  • High school diploma plus 2 years of qualifying experience
  • Eighth grade education plus 4 years of qualifying experience
  • Less than eighth grade education plus 6 years of qualifying experience
  • Eighth grade plus 1 year of vocational welding training plus 3 years of experience
  • 2 years of qualifying postsecondary study plus 6 months of experience

Applicants must document education, employment history, and a recent vision examination. Formal preparation training is not a mandatory eligibility requirement, though it's obviously useful for exam readiness. For a route-by-route walkthrough of which documentation satisfies each path, see CAWI Requirements 2026: Eligibility, Prerequisites & How to Qualify.

The Passing Standard: Why 60% Per Part Matters

CAWI requires a minimum of 60% on each part individually - Part A, Part B, and Part C are scored and evaluated separately. There is no averaged overall score that lets a strong Part A performance compensate for a weak Part B or Part C. This single structural fact should drive how you allocate study time: a candidate who's excellent at closed-book fundamentals but shaky with hands-on tool measurement can still fail the exam line outright by missing the Part B threshold.

PartQuestionsScored / PretestTimeFormat
A - Fundamentals165150 / 15135 minClosed-book, Prometric
B - Practical4646 / 0120 minHands-on, AWS-authorized site
C - D1.1 Code Book5550 / 5135 minOpen-book, Prometric

For a deeper look at how this per-part threshold compares to how other exams handle scoring, read CAWI Passing Score 2026: Exactly What You Need to Pass. If you're still gauging overall difficulty across all three parts, How Hard Is the CAWI Exam? Complete Difficulty Guide 2026 and CAWI Pass Rate 2026: What the Data Shows go into more detail.

Which D1.1 Edition to Bring

Part C is built around AWS D1.1 structural steel. The current preparation target is D1.1:2025, which is the edition listed on AWS's current D1.1 page. The linked Exam References and Editions Guide also permits D1.1:2020, and both editions are available digitally. Printed bound references are permitted for the exam, but digital word search is disabled on the electronic versions - meaning tab-and-index navigation skills matter regardless of which format you use.

Match the edition to your appointment: AWS instructs candidates to confirm which D1.1 edition their specific Part C appointment references before test day. Bringing the wrong edition, even a valid one, can cost you time hunting for renumbered clauses.

Sequencing Your Preparation Around the Three Parts

Because CAWI's three parts are scored independently and Part B is typically booked first, your study sequence should mirror your exam sequence rather than following a generic "study everything evenly" approach.

Weeks 1-2

Part B Practical Skills

  • Practice with weld gauges, replicas, and inspection tools until measurements are second nature
  • Drill Welding Inspection and Flaws and Procedure/Welder Qualifications, since together they anchor most of Part B's weighting
Weeks 3-4

Part A Fundamentals

  • Work through Definition and Terminology, Welding Processes, and Symbols since these carry the largest Part A minimums
  • Review closed-book calculation topics without reference materials, since Part A allows none
Weeks 5-6

Part C Code Navigation

  • Practice locating Qualification, Fabrication, and Inspection clauses in your confirmed D1.1 edition under a timer
  • Build a personal tab system since digital search is disabled during the exam

This sequencing isn't a generic weekly template - it's built around the actual scheduling order AWS recommends (Part B before A and C) and the actual minimum-allocation weightings published for each part. For a more detailed week-by-week plan with practice question strategy, see CAWI Study Guide 2026: How to Pass on Your First Attempt, and run timed drills on our practice test platform to simulate each part's time pressure separately.

The 3-Year Window and the Road to CWI

CAWI status is intentionally temporary: it lasts no more than 3 years, cannot be renewed or recertified, and requires the CAWI holder to work under CWI or SCWI supervision throughout that window. This is a fundamentally different design from a renewable credential - it's structured as a bridge, not a destination.

Upgrading to full CWI status before or as CAWI status lapses requires meeting the applicable experience and examination criteria for CWI directly; simply waiting out the 3-year window does not convert your credential automatically. If you're evaluating whether the CAWI route makes sense as a career step given this expiration structure, Is the CAWI Certification Worth It? Complete ROI Analysis 2026 weighs the tradeoffs, and CAWI Jobs covers what kind of supervised inspection roles typically hire CAWI holders during that window.

Key Takeaway

Start planning your CWI upgrade path early in your CAWI window - the 3-year clock doesn't pause, and there's no automatic conversion when it runs out.

Keep a condensed reference of the numbers in this article - question counts, fee tiers, and the per-part passing threshold - handy as you approach test day; our CAWI Cheat Sheet 2026: One-Page Review of Must-Know Facts collects them in one place, and you can pressure-test your recall with timed sets on the main practice test site before scheduling any of your three appointments.

Frequently Asked Questions

Is CAWI a separate exam from CWI, or an easier version of it?

CAWI is its own complete exam line administered by AWS, built around D1.1 as Part C. It is not a standalone endorsement or a simplified preview of the CWI exam - it has its own three-part structure, fees, and scoring rules.

Do I need to pass all three parts in one sitting?

No. Parts A, B, and C are administered as separate appointments - Part A and Part C via Prometric, Part B at AWS-authorized sites - and AWS recommends taking Part B before A and C.

Can a strong Part A score make up for a low Part B score?

No. CAWI requires at least 60% on each part individually. There is no averaged overall score, so every part must independently clear the threshold.

Which D1.1 edition should I study?

Current preparation content targets D1.1:2025, though D1.1:2020 is also permitted per AWS's Exam References and Editions Guide. Always confirm the specific edition tied to your Part C appointment before test day.

What happens when my CAWI certification expires?

CAWI status lasts a maximum of 3 years and cannot be renewed or recertified. To continue inspecting after that window, candidates must meet CWI's applicable experience and examination requirements directly.

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