The primary and secondary NDT of PT, MT, RT and UT certificates are organized by the provinces. Usually apply twice a year. The time is to visit the websites of quality supervision bureaus in various provinces and cities. Special types of national quality supervision bureaus such as PT, MT, RT, UT and TOFD organize examinations. The examination time is not fixed every year. See the website of AQSIQ.

The certificate is issued by AQSIQ.