Training Requirements and Prerequisites for NDT Certification

Please note: The NRCan NDTCB is currently implementing the process for Recognized Training Organizations (RTO) and courses; previous Accepted Training Organizations (ATO) may fulfill the requirements of an RTO until the NDTCB’s final implementation and transition period to the full RTO requirements are completed.

Effective October 2, 2017, the math skills prerequisite for NDT training is required for all NDT methods. In order to accommodate MT and PT training courses that are currently in process, training organizations have until January 2, 2018 to fully implement this prerequisite for MT and PT training courses.

This information is intended to help candidates understand the training they are required to complete in order to become certified in non-destructive testing.

Materials and Processes

Candidates must provide evidence acceptable to the Natural Resources Canada (NRCan) Non-Destructive Testing Certification Body (NDTCB) that they have successfully passed a Materials and Processes examination administered by an accepted training organization.

Accepted training organizations (ATOs) prepare and deliver 40-hour courses (including a completion examination) in materials and processes. Applicants must pass the Materials and Processes examination (70% passing grade) before taking training courses in non-destructive testing (NDT) methods. The examination must be invigilated in person. The ATO must provide the grade obtained to the NRCan NDTCB as part of a candidate’s application for certification.

Training organizations may omit the 40-hour course requirement if an applicant can provide evidence of sufficient prior training and pass (70%) the materials and processes course completion test. The candidate has one chance to make use of this allowance to bypass the pre-requisite M&P training. The ATO will provide a completion certificate to the candidate, who should submit it to NRCan during the certification process.


ATOs are responsible for properly pre-screening for math skills or administering math-skill tests for students in all NDT methods.  

Radiation Safety Training

For Radiographic Testing (RT) only, as a pre-requisite to training, candidates must complete radiation safety training (minimum 8 hours) provided by an ATO. The training must be in accordance with the NRCan NDTCB accepted radiation safety curriculum. An end-of-course exam is not required.

Level 1 and Level 2 NDT Training Requirements

Candidates must provide evidence acceptable to the NDTCB that they have completed a course in the NDT method for which they are seeking permission to challenge examinations. Training providers must issue documentary proof of satisfactory completion of training. Each NDT training course must follow the curriculum prescribed by the NDTCB, which decides on the acceptability of courses and instructors.

Training Requirements Summary
NDT Method Hours Required
Level 1 Level 2 Level 3
Eddy Current Testing (ET) 40 48 48
Magnetic Testing (MT) 16 24 32
Penetrant Testing (PT) 16 24 24
Radiographic Testing (RT) 40 80 40
Ultrasonic Testing (UT) 40 80 40
Visual Testing (VT) 16 24 24

NOTE: For RT, training hours do not include radiation safety training.


  1. The courses must be pre-accepted by the NDTCB, and the training hours must include both practical and theory courses. To provide candidates with appropriate hands-on learning experience, the NDTCB has mandated that a minimum of 40% course time be devoted to practical training. For example, a 40-hour course would require a minimum of 16 hours of practical training.
  2. Direct access to Level 2 implies the total of the hours of training for Level 1 and Level 2.
  3. For Level 3 certification, preparation for qualification may be done in different ways: by attending training courses, conferences or seminars (such as those organized by industrial or independent associations), or studying books, periodicals and other sources of relevant information. Regardless of how the candidate has prepared, he/she must provide documentary evidence of training acceptable to the NDTCB.
  4. Currently or previously certified personnel are considered to already possess the math and M&P prerequisites. (Liquid Penetrant [PT] and Magnetic Particle [MT] are excluded for math prior to January 2, 2018).
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