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BS ISO 13616-2:2020
Financial services. International bank account number (IBAN) Role and responsibilities of the Registration Authority (British Standard)
ISO 13616-2:2007 describes the Registration Authority (RA) responsible for the registry of IBAN formats that are compliant with ISO 13616-1, the procedures for registering ISO 13616-compliant IBAN formats and the structure of the registry.
British Standards Institution [bsi]