æt ðɪ əfˈɪʃəl klˌæsɪfɪkˈeɪʃən ðɛɹ ɪz ɐ dʒˈɛnɚɹəl pɹɪsˈʌmpʃən ðæt dˈeɪɾə mˈeɪ biː ʃˈɛɹd əkɹˌɑːs ɡˈʌvɚnmənt, haʊˈɛvɚ wˌɛɹ ɐ nˈiːd tə nˈoʊ pɹˈɪnsɪpəl ɪz aɪdˈɛntᵻfˌaɪd dˈeɪɾə mˈeɪ biː mˈɑːɹkt æz "əfˈɪʃəlsˈɛnsᵻtˌɪv"; "əfˈɪʃəlsˈɛnsᵻtˌɪv kəmˈɜːʃəl"; "əfˈɪʃəlsˈɛnsᵻtˌɪv lˈɑːksən" ɔːɹ "əfˈɪʃəlsˈɛnsᵻtˌɪv pˈɜːsənəl".
At the OFFICIAL classification there is a general presumption that data may be shared across Government, however where a need to know principle is identified data may be marked as "OFFICIAL-SENSITIVE"; "OFFICIAL-SENSITIVE COMMERCIAL"; "OFFICIAL-SENSITIVE LOCSEN" or "OFFICIAL-SENSITIVE PERSONAL".