Many certification options include different categories or industry sectors and these are shown on the certificates. An example is UT weld testing, which could list plate and pipe welds as two of the available categories and includes mandatory instruction writing at Level 2. With others, such as UT castings, there are no options available, so only show the mandatory instruction writing at Level 2. This does not mean that the certificate holder is only qualified to produce instructions; they are fully qualified to test all castings.
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