FprEN 4179

SLOVENSKI STANDARD
oSIST prEN 4179:2025
01-junij-2025
Aeronavtika - Kvalificiranje in odobritev osebja za neporušitvene preiskave
Aerospace series - Qualification and approval of personnel for nondestructive testing
Luft- und Raumfahrt - Qualifizierung und Zulassung des Personals für zerstörungsfreie
Prüfungen
Ta slovenski standard je istoveten z: prEN 4179
ICS:
03.100.30 Vodenje ljudi Management of human
resources
19.100 Neporušitveno preskušanje Non-destructive testing
49.020 Letala in vesoljska vozila na Aircraft and space vehicles in
splošno general
oSIST prEN 4179:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 4179:2025
oSIST prEN 4179:2025
DRAFT
EUROPEAN STANDARD
prEN 4179
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2025
ICS 03.100.30; 19.100; 49.020 Will supersede EN 4179:2021
English Version
Aerospace series - Qualification and approval of personnel
for nondestructive testing
Luft- und Raumfahrt - Qualifizierung und Zulassung
des Personals für zerstörungsfreie Prüfungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 4179:2025 E
worldwide for CEN national Members.

oSIST prEN 4179:2025
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Contents Page
European foreword . 4
1 Scope . 5
1.1 Purpose . 5
1.2 Applicability . 5
1.2.1 Implementation . 5
1.3 Methods . 6
1.3.1 NDT methods . 6
1.3.2 Other methods . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 11
4.1 Written practice . 11
4.1.1 Qualification and certification . 11
4.1.2 Additional requirements. 12
4.1.3 NDT techniques . 12
4.1.4 Training outlines . 12
4.1.5 Examination practices . 12
4.1.6 Administration . 12
4.1.7 Records . 12
4.2 Methods . 12
4.3 Responsibility . 12
4.3.1 General. 12
4.3.2 Responsible Level 3 . 13
4.3.3 Outside agency . 13
5 Qualification and certification levels . 13
5.1 General. 13
5.2 Trainee . 13
5.3 Level 1-Limited . 14
5.4 Level 1 . 14
5.5 Level 2 . 14
5.6 Level 3 . 15
5.7 Auditor . 15
6 Training and experience . 15
6.1 Training . 15
6.1.1 General. 15
6.1.2 Training outlines . 16
6.1.3 Previous training . 17
6.1.4 Equivalent training. 17
6.1.5 Health and safety training . 17
6.2 Training and examination personnel . 18
6.2.1 Responsible Level 3 . 18
6.2.2 Examiners . 18
6.2.3 Instructors . 18
6.2.4 OUTSIDE AGENCIES . 18
6.3 Experience . 18
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6.3.1 General . 18
6.3.2 Previous experience . 18
6.3.3 Equivalent experience . 19
6.4 Emerging NDT methods . 20
6.4.1 General . 20
6.4.2 Minimum hours . 20
6.4.3 Levels 1 and 2 . 20
6.4.4 Level 3 . 20
7 Examinations . 21
7.1 Purpose . 21
7.1.1 General . 21
7.1.2 Vision examination . 21
7.1.3 Basic examination . 21
7.1.4 General examination . 22
7.1.5 Specific examination . 22
7.1.6 Practical examination . 22
7.2 Administration of examinations . 23
7.2.1 General . 23
7.2.2 Administration by an outside agency . 24
7.2.3 Scoring . 24
7.2.4 Re-examination . 24
8 Certification . 24
8.1 General . 24
8.2 Records . 25
8.2.1 Minimum requirements . 25
8.2.2 Record availability . 25
8.3 Loss of certification . 25
8.3.1 Expiration . 25
8.3.2 Suspension . 26
8.3.3 Revocation . 26
8.4 Reinstatement of certification . 26
8.5 Recertification . 26
8.5.1 Level 1 and Level 2 . 26
8.5.2 Level 3 . 26
8.5.3 Hands-on practical examination . 27
8.6 Annual proficiency review . 27
Annex A (normative) Credit system for recertification of Level 3 NDT personnel . 28
Annex B (normative) Qualification and certification of Level 1-limited . 31
Annex C (normative) National Aerospace Non-Destructive Testing Boards (NANDTB) . 34
Annex D (normative) Credit system for initial certification to Level 3 . 37

oSIST prEN 4179:2025
prEN 4179:2025 (E)
European foreword
This document (prEN 4179:2025) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 4179:2021.
prEN 4179:2025 includes the following significant technical changes with respect to EN 4179:2021:
— updated Table 5 and Table 6 Education Requirements;
— modified Table 7 Vision Requirements and Specification of ISO 18490:2015;
— added Prerequisite Requirements for Basic Level 3 Exam;
— updated Reinstatement of Certifications;
— added Annex D - Credit System for Initial Certification to Level 3.
oSIST prEN 4179:2025
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1 Scope
1.1 Purpose
This document establishes the minimum requirements for the qualification and certification of
personnel performing non-destructive testing (NDT), nondestructive inspection (NDI), or
nondestructive evaluation (NDE) in the aerospace manufacturing, service, maintenance and overhaul
industries. For the purposes of this document, the term NDT will be used and will be considered
equivalent to NDI and NDE.
In Europe, the term “approval” is used to denote a written statement by an employer that an individual
has met specific requirements and has operating approval. The term “certification” as defined in 3.2 is
used throughout this document as a substitute for the term “approval”. Except when otherwise
specified in the written practice, certification in accordance with this document includes operating
approval.
1.2 Applicability
This document applies to personnel who:
— use NDT methods or equipment to test and/or accept materials, products, components, assemblies
or sub-assemblies;
— are directly responsible for the technical adequacy of the NDT methods and equipment used;
— operate automatic interpretation or evaluation systems;
— approve NDT procedures or work instructions;
— audit NDT facilities; or
— provide technical NDT support or training.
This document does not apply to individuals who only have administrative or supervisory authority
over NDT personnel or to research personnel developing NDT technology for subsequent
implementation and approval by a certified Level 3. See Clause 8 regarding applicability to personnel
performing specialized inspections using certain direct readout instruments.
Definition Automated equipment refers to machinery and systems designed to perform tasks without
human intervention. In a completely automated industrial process, these systems operate
independently to execute various functions.
1.2.1 Implementation
This document addresses the use of a National Aerospace NDT Board (NANDTB). NANDTBs are only
used as specified per Annex C and it is not mandatory to have such a board for compliance with this
document. Personnel certified to previous revisions of NAS410 or EN 4179 need not recertify to the
requirements of this document until their current certification expires.
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1.3 Methods
1.3.1 NDT methods
This document contains detailed requirements for the following NDT methods:
Eddy Current Testing (ET)
Liquid Penetrant Testing (PT)
Magnetic Particle Testing (MT)
Radiographic Testing (RT)
Shearography Testing (ST)
Thermographic Testing (IRT)
Ultrasonic Testing (UT)
1.3.2 Other methods
When invoked by engineering, quality, cognizant engineering organization or prime contractor
requirements, this document applies to other current and emerging NDT methods used to determine
the acceptability or suitability for intended service of a material, part, component, sub-assembly or
assembly. Such methods can include, but are not limited to, acoustic emission, neutron radiography,
leak testing, and holography.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
ISO 18490:2015, Non-destructive testing — Evaluation of vision acuity of NDT personnel
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
automated equipment
machinery, systems, and/or apparatuses designed to perform tasks, partially or fully, without human
intervention in the task being performed
3.2
basic examination
examination utilized to verify a Level 3 candidate’s knowledge of NDT methods, materials, and
manufacturing processes used by the employer at a Level 2 proficiency and NAS410/EN 4179
requirements
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3.3
certification
written statement by an employer that an individual has met the applicable requirements of this
document
3.4
closed book examination
examination administered without access to any reference materials
3.5
Cognizant Engineering Organization
engineering or NDT organization of the prime contractor, OEM (Original Equipment Manufacturer), or
end user authorized to make NDT-related decisions and give NDT-related approvals
3.6
committee or panel meetings
meetings, conferences, symposia, seminars, trade association meetings, panels, etc. organized or
sponsored by a regional, national or international NDT organization or technical society
Note 1 to entry: Foreign or international meetings qualify if the sponsor(s) are national or international.
3.7
committee projects
specific identifiable official activities of regional or national technical societies, committees or work
groups, such as round robins or individual studies, preparation of guidelines, appendices, specifications,
recommended practices, procedures, codes or standards, etc
Note 1 to entry: Documentation may include memos or reports, drafts of committee output documents, or official
written comments submitted by the candidate on such documents.
3.8
direct observation
when the observer is able to view the NDT process in a manner that permits uninterrupted, visual and
verbal two-way contact with the trainee
3.9
direct readout instrument
instruments that physically display measurements in dimensional or electrical units (e.g. inches,
millimetres or % IACS) either as digital readout or an analogue display, such as a scale/pointer
configuration, or that display go/no-go outputs, and do not require special skills or knowledge to set up
the instrument or inspection and do not involve adjusting parameters or signal displays such as gates,
delays, gain, or phase to obtain valid measurements
EXAMPLE Common direct readout instruments include basic ultrasonic thickness gauges without an
oscilloscope display, and eddy current coating thickness gauges.
3.10
documented
condition of being recorded in written or electronic form
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3.11
employer
organization employing or contracting the services of one or more individuals who perform NDT
Note 1 to entry: Self-employed individuals are included in this definition.
3.12
evaluation
review following interpretation of the indications noted during an NDT inspection to determine
whether the indications meet specified acceptance criteria or to determine the significance of the
indication
3.13
examination
formal, controlled, documented testing conducted in accordance with a documented written practice to
verify a candidate’s visual capability, skill, or knowledge of an NDT method
3.14
examiner
Level 3 certified to this document and designated by the Responsible Level 3 to administer all or part of
the qualification process in the NDT method(s) in which the Examiner is certified
3.15
experience
actual performance of an NDT method conducted in the work environment in line with expected
duties/training plan resulting in the acquisition of knowledge and skill
Note 1 to entry: This does not include formal classroom training but may include laboratory and on-the-job
training as defined by the employer’s written practice.
3.16
formal education
engineering or science studies at a technical school, college, or university
3.17
formal training
organized and documented program of learning activities designed to impart the knowledge and skills
necessary to be qualified to this document
Note 1 to entry: Formal training may be a mix of classroom, practical, and programmed self-instruction as
approved by the Responsible Level 3 or Examiner.
3.18
general examination
written examination addressing the basic principles and theory of an NDT method
3.19
indication
response or evidence of a condition resulting from an NDT inspection that requires interpretation
3.20
instructor
individual designated or approved by the Responsible Level 3 or Examiner to provide formal training or
on-the-job training for NDT personnel
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3.21
interpretation
determination of whether indications are relevant or non-relevant
3.22
LEVEL 3 task
activity for which Level 3 certification is required
EXAMPLE Approval of an NDT Technique Instruction or NDT procedure
3.23
method
one of the disciplines of nondestructive testing (e.g. ultrasonic, radiography, etc.) within which different
techniques may exist
3.24
National Aerospace NDT Board (NANDTB)
independent aerospace organization representing a nation's aerospace industry that is chartered by the
participating prime contractors and recognized by the nation’s regulatory agencies to provide or
support NDT qualification and/or examination services in accordance with Annex C of this document
3.25
non-film radiography
radiographic imaging that does not use a film-based recording medium
EXAMPLE Non-Film radiography includes, but might not be limited to, Computed Radiography, Digital
Radiography, Radioscopy, and Computed Tomography.
3.26
on-the-job training
training in the work environment to gain experience in learning instrument set-up, equipment
operation, applying the process, and recognition, interpretation and evaluation of indications under
appropriate technical guidance
3.27
open book examination
examination administered with access to specific reference material that is provided with or referenced
in the examination
3.28
operating approval
written statement issued by the employer, based upon the scope of certification, authorizing the
individual to carry out defined tasks
Note 1 to entry: Such authorization can be dependent on the employer having provided job or task-specific
training.
3.29
outside agency
independent company or organization outside the employer who provides NDT services to implement
the requirements of this document, such as training and examination of NDT personnel
Note 1 to entry: Consultants and self-employed individuals are included in this definition.
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3.30
practical examination
examination to demonstrate an individual's ability to conduct an NDT method as used by the employer
Note 1 to entry: Questions and answers need not be written, where observations and results are documented.
3.31
prime contractor
organization having overall responsibility for design, control and delivery of a system, component or
product
3.32
procedure
written general “how to” instruction for conducting a given process
Note 1 to entry: Procedures are used to develop work instructions, as defined in 3.38.
3.33
qualification
skills, training, knowledge, examinations, experience and visual capability required for personnel to
properly perform to a particular level
3.34
Responsible Level 3
individual certified as a Level 3 designated by the employer with the sole responsibility and authority to
ensure that the requirements of this document are met and to act on behalf of the employer
3.35
specific examination
written examination to determine an individual's understanding of operating procedures, codes,
standards, product knowledge, test techniques, equipment and specifications for an NDT method as
used by the employer
3.36
sub-contractor
organization responsible to the prime contractor for the manufacture or maintenance of aerospace
products
EXAMPLE For the purposes of this document, this includes suppliers and processors.
3.37
task
activity for which certification is required
EXAMPLE The approval of an NDT Technique Instruction or NDT procedure.
3.38
technique
category within a method as defined in the written practice by the employer
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3.39
test sample
part or image containing one or more known and documented natural or artificial discontinuities, flaws
or conditions used in the practical examination to demonstrate the candidate's proficiency in an NDT
method
EXAMPLE Test samples can refer to actual hardware, fabricated test parts, or, when applicable, images of
actual hardware such as radiographs.
3.40
work instruction
document detailing the NDT technique and testing parameters to be used for the inspection of a specific
component, group of parts (e.g. “aluminum extrusions” or “steel brackets”), or assembly
Note 1 to entry: These are sometimes referred to in the industry as “technique sheets” or “data cards”.
Note 2 to entry: Such work instructions are based on procedures defined in 3.30.
3.41
written
retrievable electronic or hard copy
3.42
written practice
document that describes an employer’s requirements and methodology for controlling and
administering the NDT personnel qualification and certification process
4 General requirements
4.1 Written practice
4.1.1 Qualification and certification
The employer shall develop and maintain a written practice for the qualification and certification of
NDT personnel that meets the requirements of this document. The written practice shall address the
procedural details necessary for the employer to implement an NDT qualification and certification
program and shall include the details of the NDT qualification and certification process, including:
— the levels of qualification and certification used by the employer;
— personnel duties and responsibilities;
— training and experience requirements;
— certification and recertification requirements;
— records and record keeping requirements;
— requirements for expiration, suspension, revocation and reinstatement of certifications;
— process for annual proficiency review.
The written practice shall be approved by the Responsible Level 3. The written practice shall be
available for review by the employer’s customer(s) and regulatory agencies.
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4.1.2 Additional requirements
The written practice shall include any additional requirements levied by the employer or cognizant
engineering organization, such as additional certification levels or increased experience requirements.
4.1.3 NDT techniques
The written practice shall include:
— the specific technique(s) within each method;
— the actions to be taken concerning additional training and experience;
— the written and practical testing, when additional techniques are introduced for a currently certified
individual.
4.1.4 Training outlines
The written practice shall reference or include the NDT training outlines used by the employer. If an
outside agency is used to provide training, the Responsible Level 3 shall verify that the training meets
the employer's requirements.
4.1.5 Examination practices
The written practice shall include:
— the designation of the individual(s) or organization(s) responsible for administering examinations;
— the number of examination questions to be administered;
— the specific visual acuity examination method to be used;
— if required, the use of a general examination for recertification.
4.1.6 Administration
The written practice shall include the identification of the individual(s) or organization(s) responsible
for administering and maintaining all or part of the employer's certification program.
4.1.7 Records
The written practice shall include the designation of the individual(s) or organization(s) responsible for
maintaining the qualification and certification records and where such records shall be kept.
4.2 Methods
For the methods listed in 1.3.1, the minimum requirements for training, experience and examination
are detailed in Sections 6 and 7. These requirements shall serve as a guideline for other current or
emerging methods as defined in 1.3.2.
4.3 Responsibility
4.3.1 General
The employer is responsible for the implementation of, and compliance with, this document and for
certifying qualified personnel. In addition, the prime contractor shall be responsible for compliance to
this document by their sub-contractors. Employers using outside agencies shall be responsible for
assuring that the appropriate requirements of this document are met. The employer is solely
responsible for the certification of its employees and cannot certify for another employer. Individuals
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cannot qualify themselves. Self-employed individuals may certify themselves provided they have a
written practice and have been qualified to the requirements of this document by another individual
certified to Level 3 in accordance with this document.
4.3.2 Responsible Level 3
The employer shall identify in writing a “Responsible Level 3” to act on its behalf in matters regarding
the NDT qualification and certification process. The Responsible Level 3 shall:
— be certified in accordance with this document as a Level 3 in one or more NDT methods;
— have a thorough knowledge of the written instructions, codes, specifications and standards used by
the employer;
— have a thorough knowledge of the materials, components, product technologies, NDT methods and
NDT techniques used by the employer.
Additional Examiners as defined in this document shall be identified and delegated in writing as
necessary to provide coverage for all methods used by the employer. The Responsible Level 3 may be
an outside agency but in this case, they can only qualify personnel, as only the employer can certify
personnel. The Responsible Level 3 shall be responsible for implementation of this document and the
overall administration of the qualification and certification program.
4.3.3 Outside agency
An employer may use a Level 3 certified in accordance with this document from an outside agency to
develop a certification program, act as the Responsible Level 3, examine NDT personnel or perform any
other qualification or Level 3 function. An outside agency may qualify, but not certify personnel. The
employer shall document the suitability of any outside agency selected to perform any function in
meeting the requirements of this document. This documentation shall be of sufficient detail to justify
the outside agency’s ability to perform the required Level 3 function(s).
5 Qualification and certification levels
5.1 General
The four basic levels of certification are Level 1-Limited, Level 1, Level 2 and Level 3. The employer may
subdivide, add or limit levels as appropriate, but cannot eliminate or reduce the minimum requirements
for each level. If the employer does not wish to use all of the levels, those levels to be used shall be
documented in the employer’s written practice. Where other variations or subdivisions are
implemented, the requirements and responsibilities shall also be detailed in the employer’s written
practice.
NDT personnel shall not independently perform the functions listed in 5.3, 5.4, 5.5 and 5.6 if not
certified to the appropriate level in the applicable technique/method.
5.2 Trainee
An individual who is documented as participating in a training program for an NDT method and is in the
process of becoming qualified for certification to Level 1-Limited, Level 1 or directly to Level 2, and
certified personnel extending the scope of certification shall be considered a trainee. In the
technique/method in which they are preparing for certification, trainees shall:
— be documented as a trainee and be actively participating in a training program for a stated NDT
method for a limited and specified period of time;
— obtain experience under the direct observation of a Level 2 or Level 3 in the same method;
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— obtain experience under the direct observation of a Level 1 in the same method, or instructor, only
when approved by the Responsible Level 3;
— not make accept or reject decisions;
— not independently conduct tests;
— not independently perform any other NDT function.
5.3 Level 1-Limited
Annex B defines the requirements for Level 1-Limited.
5.4 Level 1
In the method and technique in which certified, Level 1 individuals shall:
— be able to follow work instructions;
— have the skills and knowledge to process parts, document results and perform equipment
standardization in accordance with approved work instructions;
— have the skills and knowledge to carry out any necessary preparation of parts before or after testing
in accordance with approved work instructions;
— have the skills and knowledge to conduct system performance checks in accordance with the
applicable process standard;
— receive guidance or supervision from a certified Level 2 or Level 3 in that method when necessary;
— when specified in the written practice and approved by the Responsible Level 3, may perform
interpretations and evaluations of specific product(s) or product form(s) for acceptance or rejection
in accordance with approved work instructions.
5.5 Level 2
In the method and technique in which certified, Level 2 individuals shall:
— have the skills and knowledge to set up and standardize equipment, process parts, interpret and
evaluate for acceptance or rejection, and document results;
— be thoroughly familiar with the scope and limitations of the technique/method;
— have the skills and knowledge to conduct system performance checks in accordance with the
applicable process standard;
— be capable of providing the necessary guidance and/or supervision to trainees and Level 1
personnel;
— be familiar with the codes, standards, and other contractual documents that control the method as
used by the employer;
— when specified in the written practice, be capable of developing work instructions from approved
general procedures. Such work instructions shall require final approval by a Level 3 certified in the
method;
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— have a basic knowledge of relevant product manufacturing and inspection technology;
— when specified in the written practice, have a basic knowledge of aircraft or vehicle maintenance.
5.6 Level 3
In the method in which certified, Level 3 individuals shall:
— have the skills and knowledge to interpret codes, standards, and other contractual documents that
control the NDT method(s);
— be capable of assuming technical responsibility for the NDT facility and staff;
— be capable of selecting the method and technique for a specific test;
— be capable of preparing and verifying the adequacy of procedures and work instructions;
— approve NDT procedures and work instructions for technical adequacy;
— have a general knowledge of other NDT methods, product manufacturing and their related
sequencing, and test technologies used by the employer;
— when specified in the written practice, have a basic knowledge of aircraft or vehicle maintenance;
— be capable of providing or directing training, examination, and certification of personnel;
— conduct NDT for the method in which they are certified for the acceptance of parts and document
the results if a demonstration of proficiency in this ability was included in the practical examination;
— when required by the written practice, be capable of auditing outside agencies to ensure the
requirements of the written practice are met.
5.7 Auditor
Employer personnel performing technical NDT audits, surveys or assessments shall:
— be designated by the Responsible Level 3;
— have the training, skills, and knowledge to understand the processes and procedures utilized in the
application of NDT processes;
— be familiar with the applicable codes, standards, and other contractual documents that control the
applicable method(s).
6 Training and experience
6.1 Training
6.1.1 General
Candidates for certification to all levels shall successfully complete sufficient formal training to become
proficient with the principles and practices of the applicable test method and technique(s) and be
capable of carrying out the duties specified in Section 5. Formal training shall be conducted prior to, or
in conjunction with, on-the-job training. All completed NDT training shall be documented.
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The minimum training hours for Level 1 and Level 2 are provided in Table 1 and Table 2 for the
specified NDT methods. Individuals cannot certify to Level 3 without prior certification to Level 2 in the
method. Military equivalency of training and experience can be determined by the Responsible Level 3
or Examiner in accordance with sections 6.1.4 and 6.3.3 for certification to Level 3.
40 additional hours of training is required for current certified Level 3 radiography personnel
transitioning to either film or non-film radiography.
General, specific, and practical training may be obtained with the employer or outside agency but shall
always be supplemented by on-the-job training with the employer.
Table 1 — Minimum formal training hours for Level 1 and Level 2
Level 1 Level 2 with previous Level 2 without previous
Level 1 certification Level 1 certification
PT 16 16 32
MT 16 16 32
IRT 20 40 60
ST 20 40 60
ET 40 40 80
UT 40 40 80
RT 40 40 80
Film or Non-Film
RT 60 60 120
Film and Non-Film
Table 2 — RT formal training hours for transition to film or non-film
Additional Formal Training Hours
Current Level 1 Current Level 2 Current Level 1 to
Level 2 Film & Non-Film
20 40 80
6.1.2 Training outlines
All training shall be conducted in accordance with a detailed outline approved by the Responsible
Level 3 or Examiner. The outline shall include a list of references from which the training mate
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