The Central Research Institute of Electric Power Industry (CRIEPI) established a "PD Center" to fill the role of the authorized PD qualifying body and PD examination center for the Japanese PD system on November 1, 2005. March 2006 saw the start of PD examinations for ultrasonic testing (UT) depth sizing of austenitic stainless steel pipes in Japan.
As of the end of the fiscal year 2014, 42 examination courses have been completed and 53 out of a total of 99 candidates passed the examination.

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