This Regulation authorises for the first time in the European Union and for a period of 10 years clinoptilolite of volcanic origin as a feed additive belonging to the additive category ‘technological additives’ and in the functional group ‘anticaking agents’, for poultry for fattening, poultry reared for laying or reproduction, ornamental birds, piglets and pigs for fattening. This authorisation is based on the favourable conclusions of a scientific assessment of the dossier submitted by the applicant, conducted by the European Food Safety Authority (EFSA). The terms of the authorisation are detailed in the Annex to the Act.