Testing experts test and certify compliance with building code requirements in their respective fields. This is done on behalf of the building owner or other responsible parties according to the building code. Within the scope of their inspection tasks, the inspection experts are independent and not bound by instructions.instructions of the client.

Recognition as a testing expert for technical systems and equipment is only granted to applicants who meet and can provide evidence of the general requirements as well as the special requirements for this specialist area. In addition to proof of a suitable university degree and sufficiently long professional and testing experience, a specialist assessment is carried out, which includes a written and an oral examination.