CWI Part B Is a Discipline. Train the Decision.

BOS Master teaches you to navigate the Book of Specifications and make decisions supported by evidence.

Part B uses the AWS Book of Specifications—not AWS D1.1. AWS D1.1 is a separate code used for Part C when selected and for applicable field work. BOS Master keeps those sources in their proper lanes.

THE BOS MASTER DECISION SYSTEM

Evidence → Classification → Governing Source → Provision → Decision

Evidence

What does the question, exhibit, measurement, record, or test result actually establish?

Classification

What type of issue is being evaluated?

Is it weld profile, discontinuity acceptance, procedure qualification, welder qualification, mechanical testing, documentation, inspection technique, or another Part B subject?

Governing Source

Which source controls this question?

For Part B practice, that will normally be the applicable provision, table, figure, form, or appendix in the authorized Book of Specifications—not an outside codebook substituted from memory.

Provision

Where does the BOS address the classified issue?

What variables, limitations, notes, and exceptions must be considered?

Decision

Does the evidence support ACCEPT, REJECT, HOLD, or another answer required by the question?

Can you explain the path that produced the decision?

YOU DO NOT NEED MORE RANDOM QUESTIONS

You need a repeatable decision system.

If any of this sounds familiar, BOS Master was built for you:

You understand welding but second-guess yourself during practical questions.
You spend too much time searching the Book of Specifications.
You find a table but are not sure whether it applies.
You confuse Part B examination requirements with AWS D1.1 requirements.
You overlook a variable that changes the answer.
You reject conditions because they look bad.
You accept conditions before the evidence is complete.
You struggle to explain why your answer is supported.

BOS Master gives you a process you can run again and again.

REAL OBSERVATIONS. CORRECT SOURCES. DEFENSIBLE DECISIONS.

A strong inspector does not begin with ACCEPT or REJECT.

A strong inspector begins with the evidence.

WHAT YOU PRACTICE

Classify the issue before opening a table
Identify the correct governing source
Locate the applicable provision
Extract the variables that control the answer
Read notes and exceptions
Separate evidence from assumption
Make an ACCEPT, REJECT, or HOLD decision
Explain the decision path clearly
Recognize when an answer cannot yet be supported

WHAT YOU RECEIVE

A guided Book of Specifications walkthrough
The BOS Master decision framework
Scenario-based practical drills
Classification exercises
Qualification-record exercises
Mechanical-test and inspection exercises
Reusable source-mapping templates
A decision-log framework for recording your reasoning
Timed practice designed to improve navigation discipline

INSIDE BOS MASTER

Five modules. One decision system.

MODULE 1

THE BOS DECISION FRAMEWORK

Learn the Evidence → Classification → Governing Source → Provision → Decision process.

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MODULE 2

OBSERVATION AND CLASSIFICATION

Identify what the evidence establishes and classify the issue before searching.

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MODULE 3

BOOK OF SPECIFICATIONS NAVIGATION

Locate and apply the controlling Part B Book of Specifications provision.

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MODULE 4

SCENARIO-BASED DECISION DRILLS

Apply the decision system to realistic Part B inspection scenarios.

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MODULE 5

EXAM EXECUTION

Apply the method under time pressure while recording a defensible answer.

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BOS MASTER AND CLAUSEBOT

BOS Master is MiltmonNDT’s focused CWI Part B learning system.

ClauseBot is MiltmonNDT’s governed learning assistant for source identification, navigation, explanation, and clause-cited reasoning.

Within authorized training content, ClauseBot is designed to help learners:

Identify the subject of a question
Determine which source applies
Locate relevant provisions
Separate requirements from interpretations
Recognize missing information
Explain the reasoning behind a decision
Avoid combining requirements from different standards

ClauseBot does not replace the official examination documents, issue official interpretations, or guarantee that every technical question has enough information for an immediate answer.

THE MOST IMPORTANT ANSWER MAY BE HOLD

In BOS Master, HOLD is a training and field-decision status used when the available evidence does not support acceptance or rejection. On the CWI examination, candidates must select the answer supported by the question, authorized examination source, and available response choices.

Not every inspection question supports an immediate ACCEPT or REJECT decision.

Sometimes the responsible answer is:

The governing source has not been identified.
The edition has not been confirmed.
A required measurement is missing.
The discontinuity has not been properly classified.
The applicable note or exception has not been evaluated.
The question does not provide enough evidence.

BOS Master trains you to recognize insufficient information instead of filling the gap with confidence.

That discipline matters on an examination, in a report, and anywhere a technical decision must withstand challenge.

SCENARIO 1 — THE EVIDENCE IS NOT COMPLETE

A practice scenario shows a linear indication near the face of a groove weld. The available information does not establish the discontinuity type or provide every variable needed for disposition.

What an unprepared candidate may do:

Call it undercut because it is near the weld toe.

Call it incomplete fusion because it appears linear.

Call it a crack because cracks are rejectable.

Accept it because the question does not provide enough measurements.

What BOS Master teaches:

Do not manufacture certainty.

First identify what the evidence actually establishes. Location and appearance alone may not prove whether the condition is undercut, incomplete fusion, a crack, or another discontinuity.

BOS Master Decision:

HOLD — MORE INFORMATION OR CLASSIFICATION IS REQUIRED.

The evidence does not yet support a defensible acceptance or rejection decision. Identify the missing variable, use the authorized source, and continue only when the condition can be properly classified.

SCENARIO 2 — UNATTRACTIVE DOES NOT AUTOMATICALLY MEAN REJECTABLE

A practice scenario shows visible undercut along a weld toe. The condition has been identified and measured. The exercise supplies the weld category and every variable required by the applicable Book of Specifications provision.

What an unprepared candidate may do:

Reject the weld because the undercut looks severe.

Ignore the measurement and rely on appearance.

Use a remembered AWS D1.1 limit instead of the Part B Book of Specifications.

What BOS Master teaches:

Classify the condition first.

Use the measurements and variables supplied in the question.

Locate the applicable BOS provision.

Read the complete requirement, including its notes and limitations.

Compare the evidence with the stated acceptance limit.

BOS Master Decision:

ACCEPT OR REJECT AS DIRECTED BY THE APPLICABLE BOS PROVISION.

Appearance alone does not determine the result. The answer must come from the measured condition and the controlling examination source.

SCENARIO 3 — THE ANSWER IS IN THE RECORD

A procedure or welder-qualification question provides a completed record containing welding process, position, base-metal thickness, filler metal, backing, progression, test results, and other variables.

What an unprepared candidate may do:

Search for a familiar phrase.

Apply a rule before identifying what changed.

Miss a disqualifying variable buried in the record.

What BOS Master teaches:

Determine whether the question concerns procedure qualification or personnel qualification.

Identify the variable being tested.

Locate the corresponding BOS table, form, or provision.

Compare the recorded value with the permitted qualification range.

BOS Master Decision:

FOLLOW THE RECORD.

The correct answer comes from the relationship between the documented variable and the applicable qualification requirement—not from guessing what is normally allowed in the field.

YOUR INVESTMENT

BOS Master enrollment: $497

You do not need another pile of disconnected questions.

You need a process for turning evidence into a decision you can support.

Stop guessing.

Identify the evidence.

Classify the issue.

Use the correct source.

Find the provision.

Make the decision.

IMPORTANT NOTICE

BOS Master and ClauseBot are independent educational products of MiltmonNDT. They are not official American Welding Society products and are not endorsed by AWS.

BOS Master does not reproduce, replace, or supersede the official AWS Part B Book of Specifications or any other examination document. Candidates are responsible for obtaining and using the materials authorized for their examination.

ClauseBot provides educational and decision-support assistance. It does not issue official code interpretations, certify personnel or procedures, or replace the authority of AWS, an engineer, an employer, a contract, or a qualified inspector acting within an assigned role.