Are described the adopted procedures for manufacture of specimens for practical evaluation of candidates, are described too, the details of theoretical examinations and adopted practices for evaluation.

A statistical analysis of achieved results since the beginning of the work in this area is shown. The methods of involved examinations are related, given all details of each modality.

The adopted systematics for evaluation and certification of inspection procedures using the NDT techniques as Magnetic Particles, Dye Penetrant, Ultrasonic and Radiography are shown in all of its details.