(4)Providing clarity for issuers on the use of post-issuance disclosure templates will encourage take-up of those templates, thus helping to enhance transparency and standardisation in the market for sustainable bonds. It is thus necessary to further specify aspects linked to use of those templates. This concerns the frequency at which issuers should publish periodic post-issuance disclosures, which should take into account whether the issuer obtains an external review of the disclosures.