the place of production is with complete physical protection against the introduction of the specified organism, or has been subjected to appropriate preventive treatment and surrounded by a buffer zone with a radius of at least 4 km where official surveys for the presence or signs of the specified organism are carried out annually at appropriate times;
le bois est écorcé et a subi un traitement thermique approprié permettant d'assurer une température minimale de 56 °C pendant une durée ininterrompue d'au moins trente minutes dans l'ensemble du bois (y compris en son cœur);