Rhaid i sefydliadau sydd o fewn y cwmpas sicrhau bod rheolaethau diogelwch amddiffynnol priodol ar waith ar gyfer contractau newydd a phresennol, yn unol â'r Polisi diwygiedig. Mae cyfres lawn o ddogfennau cyfarwyddyd ar gael ar GOV.UK, gyda chanllawiau penodol ar gyfer cyflenwyr a thimau masnachol. Mae modiwl e-ddysgu, Polisi Dosbarthiadau Diogelwch y Llywodraeth, ar gael ar wefan Dysgu’r Gwasanaeth Sifil.
In-scope organisations must ensure that appropriate protective security controls are in place for new and existing contracts in line with the updated Policy. A full suite of guidance documents is available on GOV.UK, with specific guidance for commercial teams and suppliers. An e-learning module, Government Security Classification Policy, is available on the Civil Service Learning website.