1. An EU ETS auditor shall have the competence to perform the verification. To this end, the EU ETS auditor shall have at least:

(a) knowledge of Directive 2003/87/EC, Implementing Regulation (EU) 2018/2066, this Regulation, relevant standards, and other relevant legislation, applicable guidelines, as well as relevant guidelines and legislation issued by the competent authority or Secretary of State;

(b) knowledge and experience of data and information auditing, including:

(i) data and information auditing methodologies, including the application of the materiality level and assessing the materiality of misstatements;

(ii) analysing inherent risks and control risks;

(iii) sampling techniques in relation to data sampling and checking the control activities;

(iv) assessing data and information systems, IT systems, data flow activities, control activities, control systems and procedures for control activities.