The certification schemes or equivalent qualification schemes referred to in Article 18(3) shall take due account of the following guidelines:
Sna scéimeanna deimhniúcháin nó scéimeanna um cháilíochtaí coibhéiseacha dá dtagraítear in Airteagal 18(3) tabharfar aird chuí ar na treoirlíne seo a leanas: