13.2 CP-189 Mandatory Requirements

ASNT NDT Level III Basic Examination Exam

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1 Introduction & Exam Overview

1.1 Current Exam Facts 1.2 Level III Role and Certification Path 1.3 Eligibility, Fees, Scheduling, and Retakes 1.4 Study Strategy and Exam-Day Approach

2 Chapter 2: Materials Fundamentals for NDT

2.1 Ferrous Metals and Iron-Carbon Phases 2.2 Non-Ferrous Metals and Alloys 2.3 Mechanical Properties and Crystal Structure

3 Chapter 3: Manufacturing Processes

3.1 Casting Processes and Cast Discontinuities 3.2 Forging, Rolling, and Forming 3.3 Extrusion, Drawing, and Machining 3.4 Heat Treatment Effects

4 Chapter 4: Welding and Joining Processes

4.1 Fusion Welding Processes 4.2 Weld Metal and HAZ Discontinuities 4.3 Brazing, Soldering, and Mechanical Joining

5 Chapter 5: Discontinuity Classification

5.1 Inherent Discontinuities 5.2 Processing Discontinuities 5.3 Service Discontinuities

6 Chapter 6: Specific Discontinuity Types

6.1 Cracks and Fracture Modes 6.2 Porosity, Inclusions, and Lack of Fusion 6.3 Laminations, Seams, Laps, and Undercut 6.4 Relevant vs Non-Relevant Indications

7 Chapter 7: NDT Method Selection and Inspection Planning

7.1 Method Selection Principles 7.2 Surface vs Volumetric Methods 7.3 Inspection Planning and Flaw Expectations

8 Chapter 8: Ultrasonic and Radiographic Testing

8.1 Ultrasonic Testing Principles and Applications 8.2 UT Limitations, Calibration, and Evaluation 8.3 Radiographic Testing Principles and Applications 8.4 RT Limitations, Image Quality, and Safety Basics

9 Chapter 9: Magnetic Particle, Liquid Penetrant, and Visual Testing

9.1 Magnetic Particle Testing 9.2 Liquid Penetrant Testing 9.3 Visual Testing

10 Chapter 10: Electromagnetic, Leak, Acoustic Emission, and Infrared Testing

10.1 Electromagnetic / Eddy Current Testing 10.2 Leak Testing 10.3 Acoustic Emission Testing 10.4 Thermal / Infrared Testing

11 Chapter 11: Specialty Methods and Method Comparison

11.1 Neutron Radiography 11.2 Magnetic Flux Leakage 11.3 Method Comparison and Supplemental Examinations

12 Chapter 12: SNT-TC-1A Recommended Practice

12.1 SNT-TC-1A Overview and Written Practice 12.2 SNT-TC-1A Training and Experience 12.3 SNT-TC-1A Examinations and Recertification

13 Chapter 13: CP-189 Standard Practice

13.1 CP-189 Overview and Scope 13.2 CP-189 Mandatory Requirements 13.3 SNT-TC-1A vs CP-189 Comparison

14 Chapter 14: CP-105 and NDT Training Programs

14.1 CP-105 Purpose and Topical Outlines 14.2 Developing and Approving NDT Training 14.3 OJT, Mentoring, and Instructor Oversight

15 Chapter 15: Building and Managing Certification Programs

15.1 Building Qualification and Certification Programs 15.2 Administering Examinations and Evaluating Competency 15.3 Program Audits and Managing Certifications

16 Chapter 16: Codes, Standards, Procedures, and Quality

16.1 Interpreting Codes, Standards, and Specifications 16.2 Developing and Approving NDT Procedures 16.3 Acceptance Criteria and Quality Control 16.4 External Audits and Inspection Documentation

13.2 CP-189 Mandatory Requirements

Key Takeaways Explain This Topic AI

CP-189 frames training, experience, examination, vision, and recertification as mandatory program elements; employers shall not reduce the standard’s minimums once CP-189 is invoked.

Qualification examinations shall be administered or approved by a NDT Level III in the applicable method, with documented records of examinations and results.

An outside agency Level III may be used only if the individual meets qualification requirements and the arrangement (including responsibilities) is documented in the written practice.

Recertification intervals are limited (commonly not more than five years); under CP-189, re-examination is required at recertification—experience documentation alone is not enough.

Lapsed certifications must be reinstated through the qualification process appropriate to the lapse; automatic reissue without that process fails the standard.

Last updated: July 2026

13.2 CP-189 Mandatory Requirements

Quick Answer: Under CP-189 , once the standard is invoked , the employer’s program shall implement mandatory minimums for training, experience, examination, vision, and recertification . Examinations shall be administered or approved by a NDT Level III with documented records . Outside agency Level III support is allowed only when the person is qualified and the arrangement is written into the practice . Recertification is capped (commonly not more than five years ) and, critically for the Basic exam, re-examination is required — experience alone is not sufficient . Do not invent exact hour tables from memory; own the shall-vs-should character and the Level III control rules.

Section 13.1 established that CP-189 is a standard . This section is about what that means operationally. Basic exam writers rarely need you to reproduce every cell of a training-hour appendix under exam stress. They need you to recognize which knobs an employer may not turn down , who owns exam integrity , and how recertification differs from soft “continuing satisfactory performance” stories that may appear under more flexible recommended practices.

The Controlling Document Still Exists—and Is Stricter in Spirit

CP-189 does not eliminate the employer’s written program document. Employers still must establish and maintain a written practice (or equivalent certification procedure) that controls:

• Methods and techniques covered
• Levels of qualification and any limited certifications
• Training and experience requirements (meeting or exceeding CP-189 minimums)
• Examination administration, grading, retest rules, and record retention
• Vision examination requirements and intervals
• Recertification intervals and methods
• Responsibilities of Level III personnel and any outside agency arrangements
• Suspension, revocation, and reinstatement after lapse

Exam trap: “Because CP-189 is a standard, no written practice is needed.” False. The standard is the external rulebook ; the written practice is the local implementation . Auditors and customers read both.

Training Requirements: Mandatory Minimum Character

Think of training under CP-189 as required preparation against a defined body of knowledge for each method and level—not optional enrichment.

Exam-useful framing:

Training shall meet or exceed the standard’s minimums for the method and level (exact hours live in the published edition’s tables— verify in the document , do not invent).

Training content is expected to cover the knowledge needed for the examinations and the work; employers commonly align course outlines with CP-105 topical outlines (the training companion standard covered in Chapter 14).

The employer’s written practice must describe how training is delivered, documented, and credited (classroom, structured remote/online, laboratory, etc., as the program allows).

Customers or codes may demand more training than CP-189’s floor; the standard’s force is that you do not go below its floor when CP-189 governs.

Contrast trap with SNT-TC-1A: under a recommended practice, employers discuss recommended minimums and limited tailoring concepts in the Written Practice. Under CP-189, exam language focuses on mandatory minimums that cannot be reduced by employer preference once the standard applies.

Experience Requirements: Documented Performance, Non-Reducible Floor

Experience under CP-189 is still documented time performing NDT at the relevant method/level—not “years employed in the building.” Basic items target:

Experience must be documented and consistent with the method and level claimed

Education pathways may interact with experience requirements in the published tables (again: look up the edition; do not invent reduction formulas on the exam)

Limited certification may reduce scope (and matching requirements) only as the standard and written practice allow for a restricted technique/application set

Experience does not substitute for required examinations

Level III thinking: if production wants to “grandfather” a long-time helper into Level II without documented method experience and exams, a CP-189 program has fewer soft exits than a loosely tailored SNT-TC-1A story. Your job is to protect the floor.

Examinations: Level III Administration/Approval and Records

This is one of the highest-yield CP-189 themes on the Basic exam.

Core rule to memorize as a concept (not a hour cell):

Qualification examinations for NDT personnel shall be administered or approved by a NDT Level III in the applicable method, with documented records of the examinations and results.

What that implies in practice and on scenario items:

• Element CP-189-oriented expectation
• Who controls exams Level III in the method administers or approves
• What is recorded Exam administration, scores/results, and related qualification records

General / specific / practical Level I/II paths still use a multi-part exam structure appropriate to method and level (parallel to the SNT framework you already know)

Integrity Controlled specimens, controlled question banks, no undocumented “oral pass” overrides

Who cannot casually replace Level III control A Level II in the same method is not a free substitute for Level III exam authority under CP-189

Open-book-only on procedures, verbal-only undocumented testing, or “everyone uses the same three easy plates forever” all fail the spirit and documentation of a mandatory examination system—even when the candidate is skilled on the floor.

Vision Requirements

CP-189 programs include vision examinations as a qualification element. For Basic recall, keep the same practical model you used under SNT-TC-1A without inventing new unpublished thresholds:

Near-vision acuity is required (commonly discussed as Jaeger 2 or equivalent at not less than about 12 inches—confirm the current edition wording for exact criteria)

Color vision / contrast differentiation is required when the method needs it (e.g., color-contrast penetrants, color-coded systems)

• Intervals and administration details live in the written practice consistent with the standard
• Failed vision checks block certification/recertification until corrected/retested per program rules

Vision is not a trivia afterthought: a Level III who ignores expired vision records has a program integrity failure under a shall-based standard.

• Level III Requirements and Outside Agencies
• Internal Level III role

Under CP-189, Level III personnel are the technical backbone of:

• Procedure development and approval
• Training program design/approval appropriate to the methods
• Examination development, administration, or approval
• Technical supervision of the qualification system
• Supporting audits and customer inquiries about personnel qualification
• Outside agency Level III

Employers may use an outside agency Level III when:

The individual meets the qualification requirements , and

The arrangement—including responsibilities —is documented in the written practice .

Exam traps to reject:

• “Outside Level III is allowed with no written practice provisions”
• “Outside Level III is allowed only for radiography”
• “Outside Level III is allowed only when the employer has zero NDT staff”

“Hiring an outside Level III means the outside agency becomes the certifying authority instead of the employer”

The employer remains responsible for the certification program; the outside Level III is a documented service relationship , not a silent handoff of legal/program ownership.

• Recertification and Lapse
• Maximum interval

CP-189 limits how long a certification may run before recertification. The Basic-aligned fact from current program teaching and practice items: recertification intervals shall not exceed five years (employers may set shorter intervals in the written practice; they may not invent a ten-year “experience only” extension that violates the standard’s cap).

Re-examination character (major SNT contrast)

A key difference candidates must own:

Under more flexible recommended-practice language, recertification discussions often include evidence of continuing satisfactory performance and/or re-examination as the Written Practice allows.

Under CP-189 , personnel are recertified at intervals not exceeding the maximum through re-examination (and other written-practice provisions). Experience documentation alone does not satisfy CP-189 recertification.

That single contrast—“experience alone is enough” vs “re-examination required”—is classic Basic bait.

Lapsed certification

If certification lapses beyond the allowable interval, the employer shall not simply reprint a certificate. Reinstatement must follow the qualification process appropriate to the lapse , which typically means re-examination and may include refresher training as the program requires. Automatic reissue without that process fails CP-189.

Procedure and Document Control Concepts

Level IIIs sitting Basic should connect personnel certification to document control habits:

• The written practice is controlled (revision history, approval, distribution)
• Examination materials are controlled (access, revision, security)
• Certification records are controlled (who is current, method/level scope, expiration, vision status)

Method procedures used on the job are controlled separately—but a specific exam that never updates after a major procedure rewrite is a qualification integrity red flag

Customer contracts that invoke CP-189 should be mapped to program clauses so the shop is not “SNT in practice, CP-189 on paper”

High-Yield “Shall” Exam Traps (Without Inventing Tables)

Memorize the character , not fake numbers:

• Trap statement Better Basic answer
• “Employer may reduce CP-189 training hours if busy” No —minimums are mandatory once invoked
• “Any Level II can grade certification exams alone” No —Level III administers or approves
• “No records needed if everyone knows the tech is good” No —documented examination records are required
• “Outside Level III needs no written-practice mention” No —document the arrangement and responsibilities
• “Recertify forever by signature and experience log only” No —re-examination path; max interval applies
• “Lapsed cert auto-renews next Monday” No —reinstatement via appropriate qualification process
• “CP-189 removes vision testing” No —vision remains a program element
• Closing This Section

Section 13.2 is the “operations manual” of CP-189 for Basic: mandatory floors , Level III–controlled exams with records , documented outside help , vision , and recertification by re-examination within a five-year maximum . Section 13.3 locks the contrast with SNT-TC-1A into a side-by-side you can deploy on almost any standards-block question.