Commission Implementing Regulation (EU) 2021/2119 of 1 December 2021 laying down detailed rules on certain records and declarations required from operators and groups of operators and on the technical means for the issuance of certificates in accordance with Regulation (EU) 2018/848 of the European Parliament and of the Council and amending Commission Implementing Regulation (EU) 2021/1378 as regards the issuance of the certificate for operators, groups of operators and exporters in third countries