Division 3 If no circulation of the infection has been detected for 2 consecutive years following granting of the status free from infection with BTV of a Member State or of a zone, surveillance must be based on:

random annual surveillance at least to detect, with a 95 % level of confidence, the infection with BTV at a target prevalence rate of 20 %; or

risk-based annual surveillance to detect infection with BTV carried out taking into account the systems of production and the risk factors identified.