Failed a CWI part? Rebuild your study plan

Start with what actually happened

Read your AWS score letter before you plan anything. It tells you which parts you retake, and a part that missed 72% is the only target. A strong part can't make up for a weak one, so look at each part on its own line, not at your average.

Then sort the miss into one of three types. They need different fixes:

• Knowledge gap. You didn't know the material. Part A is closed book, so this is the most common cause there.
• Navigation gap. You knew the topic but couldn't find the answer fast enough in the Book of Specifications (Part B) or your code (Part C).
• Clock gap. You knew it and could find it, but ran out of time. Part A leaves under a minute per question, and Part C leaves about two minutes with a code open.

Be honest about which one it was. Rereading everything is the slow way to fix a clock gap, and drilling the clock is the slow way to fix a knowledge gap.

Write down topics, never questions

Within a day of the exam, write a short list of the subjects you felt shaky on: "NDE method selection", "symbol arrow side", "finding the visual criteria in my code". Topics only. Exam content is confidential, and a list of questions you half remember is also a bad study tool, because it points you at specific items instead of the skills behind them.

Rate each topic on a three-point scale: sure, shaky, lost. Anything shaky or lost goes on the rebuild list. The list gets sorted properly in the next step, so don't overthink it now.

If Part A is the part you missed, the discontinuities article and the WPS, PQR and WPQ explainer cover two of the topics that cost candidates the most points. For a full schedule around a job, see the 12-week study plan.

Map the list to domains and take the check

Part A, Part B and Part C each follow a published AWS outline, and your list should map onto its domains. Joining and cutting processes, definitions, symbols, NDE fundamentals, metallurgy, calculations and duties all weigh differently, so a weak spot in a large domain deserves more hours than a weak spot in a small one. The Part A guide shows where the points sit.

Memory of an exam is fuzzy, so get an objective read too. The free 10-question check for your part is scored by domain and shows which areas to study first. Compare it with your list. Where both point to the same domain, that's your first week. Where the check says you're fine and your list says shaky, spend one short session confirming it, then move on.

Build the rebuild plan by domain

Give each weak domain a block, and make every block end with a test, not a reading session.

1. Largest weak domain first. Study it in short daily sessions, then close the book and answer from memory.
2. One technique per gap type. For knowledge gaps, write your own one-line explanations and quiz yourself with them. For navigation gaps, practice reaching a clause or table by its number and time each lookup. For clock gaps, work sets at real exam pace.
3. Keep a miss log. Each wrong answer gets a line: the topic, why you missed it (didn't know, couldn't find, ran out of time) and the fix. Patterns show up within a week.
4. Retest yourself weekly. Take a timed set on your weak part. Move the exam date only when you're clearing 72% with room to spare, since a result of 71.9% is reported as 71%.

If Part C was the miss, remember the code stays the same for the whole retest period. Practice with the same edition you'll sit, as covered in the Part C D1.1 guide.

Plan the training, time and budget

Your first retest needs no extra training evidence. A second or third retest does, and you complete that instruction before you apply, so build it into the calendar from the start. The retest rules spell out what AWS asks for, and the free check and practice here don't stand in for that documented training.

Money matters too. A retest of Part A or Part C costs $445, and a Part B retest costs $385, before travel and time off work. The CWI cost guide lists every fee, and the CWI exam cost calculator shows what a retest adds to your total. Seen that way, a few extra weeks of targeted study is the cheapest part of the whole attempt. Part B also sits on a fixed event date, so check the schedule first and work back from it.

You have up to three retests in three years of your original test date. That's room to do this properly. Rebook when your timed practice says you're ready, not when the first open seat appears.

Find your weak areas now

The fastest next step is the free 10-question check for the part you missed. It takes a few minutes, needs no signup and shows exactly which areas to study first, so your rebuild plan starts from data instead of memory. Take the free Part A check now, or pick your part from the Fillet Gauge overview. Not sure what the numbers mean? The pass rate guide explains what AWS does and doesn't publish.

FAQ

Do I retake all three parts?

No. With a composite of at least 72%, you retake only the parts under 72%. If your composite is lower, your AWS score letter sets out your route, so follow the letter.

How many retests do I get?

Three, within three years of your original test date. The retest rules guide covers the limits and which retests need documented training.

What should I change before the next attempt?

Change the method, not just the hours. Identify whether you missed on knowledge, navigation or clock, then drill that one thing with timed sets and a miss log.

How long should I wait before I rebook?

Wait until your timed practice on that part clears 72% consistently. For Part B, check the event schedule, because it runs on fixed dates.