Following the issue of new EPC Conventions earlier this year MHCLG have now issued new DEC Conventions.
EPC Conventions Issue 7 had an effective date of 1 July for the new or revised conventions.
To check the details of these conventions, please follow the link to the QA Portal here.
DEC Conventions Issue 2 has an implementation date of 1 November 2018.
To check the details of these conventions, please follow the link to the QA Portal here.