Member States shall require the undertaking to carry out the following tasks:
achieve and maintain an optimal level of protection of members of the public;
accept into service adequate equipment and procedures for measuring and assessing exposure of members of the public and radioactive contamination of the environment;
check the effectiveness and maintenance of equipment as referred to in point (b) and ensure the regular calibration of measuring instruments;
seek advice from a radiation protection expert in the performance of the tasks referred to in points (a), (b) and (c).