(20)Union institutions and bodies should adhere to Union standards in the pursuit of sustainability objectives, including those referred to in Regulation (EU) 2020/852. The European Parliament and the Council encourage the use of the European Green Bond standard for the issuance of use-of-proceeds bonds that have environmental sustainability as their objective. The European Investment Bank, as a worldwide leading issuer of green bonds, remains committed to gradually aligning its green bond programme with the European Green Bond standard.