I don't know what industry you are engaged in, and the nondestructive testing certificate in every field is not universal.

Domestic fields include: national special equipment (registered with local quality and technical supervision bureau), nondestructive testing institute (collected online, not commonly used), national power system, classification society (ship) and so on.

You need to contact the relevant system to register. Let each province have irregular training every year.

I am engaged in nondestructive testing. Please let me know if you need any help.