Please find attached for information the IMO Circular letter No.4204/Add.19/Rev.3 dated 8 February 2021 “Coronavirus (COVID-19) – Guidance for flag states regarding surveys and renewals of certificates during the COVID-19 pandemic”, including the annexed “Guiding principles for the provision of technical and implementation advice to flag States when considering whether to permit statutory certificate extension beyond 3 months” developed by IACS, for the role of IACS member Classification Societies as ROs acting on behalf of flag States “.