Member States shall require undertakings to seek advice from a radiation protection expert within their areas of competence as outlined in Article 82, on the issues below that are relevant to the practice:
the examination and testing of protective devices and measuring instruments;
prior critical review of plans for installations from the point of view of radiation protection;
the acceptance into service of new or modified radiation sources from the point of view of radiation protection;
regular checking of the effectiveness of protective devices and techniques;
regular calibration of measuring instruments and regular checking that they are serviceable and correctly used.