Article 4Techniques for conducting supervision
1.
The national safety authority shall adopt techniques for supervision activities. These techniques commonly include interviews with people at various levels in an organisation, reviewing documents and records related to the safety management system and examining the safety outcomes of the management system revealed by inspections or related activities.
2.
The national safety authority shall ensure that its supervision activities include checking
(a)
the effectiveness of the safety management system;
(b)
the effectiveness of individual or partial elements of the safety management system, including operational activities.