the identification of posts that perform safety tasks;
the identification of posts that entail responsibilities for taking operational decisions within the safety management system;
staff to have the necessary knowledge, skills and aptitude (medical and psychological) appropriate to their tasks and periodically undergo retraining;
allocating staff with the competence appropriate to relevant tasks;
monitoring how tasks are performed and implementing corrective actions where required.
Annex III to Directive 2004/49/EC, point 2(e).