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Non-Destructive Testing

CSWIP Non-Destructive Testing certification provides a comprehensive range of competence assurance solutions in accordance with ISO 9712. Covering practical non-destructive testing of welds, castings and wrought products, these certifications are designed to assure industry of the certificate holder’s level of proficiency.

For NDT personnel requiring sector, product or company specific certification, the CSWIP Employer Specific Non-Destructive Testing scheme applies ISO 9712 requirements to the employer’s specific products and inspection procedures.

CSWIP Non-Destructive Testing certification (excluding the Employer Specific) consist of one governing document and several supporting appendices that provide the relevant ‘Examination Format and Syllabus for the Certification of Personnel engaged in Non-Destructive Testing of Welded Joints and General Engineering Components’ for each particular method. 

Governing NDT Scheme Document - CSWIP-ISO-NDT-11-93-R, 9th Edition, June 2018

CSWIP Examination Exemptions for NDT Certification

Ultrasonic Inspector (UT)

Appendix 1 Part 1a, 6th Edition, February 2016

Magnetic Particle Inspector (MT)

Appendix 1 Part 2, 5th Edition, February 2016

Liquid Penetrant Inspector (PT)

Appendix 1 Part 3, 5th Edition, February 2016

Radiographic Interpreter (RI) (with groups)

Appendix 1 Part 4a, 6th Edition, April 2017

Radiographic Interpreter (RI) (combined)

Appendix 1 Part 4b, 1st Edition, April 2018

Radiographic Inspector (RT) (with metallic groups)

Appendix 1 Part 5a, 5th Edition, February 2016

Radiographic Inspector (RI) (without metallic groups)

Appendix 1 Part 5c, 1st Edition, April 2018

Visual and Optical Inspector (VT)

Appendix 1 Part 6, 5th Edition, February 2016

Alternating Current Field Measurement Inspector (ACFM)

Appendix 1 Part 7, 5th Edition, February 2016

Eddy Current Inspector (EC)

Appendix 1 Part 8, 4th Edition, February 2016

Radiation Safety (RS)

Appendix 1 Part 9, 3rd Edition, February 2016

Leak Detection (LT)

Appendix 1 Part 10, 3rd Edition, February 2016

Governing NDT Scheme Document - CSWIP-ISO-NDT-11-93-R, 9th Edition, June 2018

CSWIP Examination Exemptions for NDT Certification

Automated Ultrasonic Girth Weld Inspection (AUT) and Phased Array Ultrasonic Testing (PAUT)

Appendix 1 Part 1b, 5th Edition, March 2023

Time of Flight Diffraction Ultrasonic Inspector of Welds in Ferritic and Non-Ferritic Materials (ToFD)

Appendix Part 1c, 3rd Edition, February 2016

Computed Radiographic Inspector (CRT) and Interpreter (CRI)

Appendix 1 Part 5b, 3rd Edition, February 2016

Guided Wave Testing Inspector of Pipes and Pipelines (GWT)

Appendix 1 Part 11, 4th Edition, June 2018

Employer Specific Certification of Personnel Engaged in NDT in accordance with the requirements of ISO 9712

CSWIP-ES-NDT-12-04, 3rd Edition, September 2015

Recognised Third Party Organisation (RTPO)

TWI Certification Ltd (TWI CL) is a Recognised Third Party Organisation (RTPO) for the approval of welders, welding procedures and NDT inspectors for permanent joints.



All CSWIP applicants and certificate holders are required to comply with the CSWIP rules.


Renewal and recertification

Details of how to renew and/or recertify your CSWIP Non-Destructive Testing certificate can be found on our dedicated renewal page.


Approved Training Bodies

If you would like to find a training provider offering these courses in your area, please view our list of Approved Training Providers and contact them for further details.

List of Approved Training Providers

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