Who should read this implementation guide?

What is P339?

What are Measurement Classes E, F and G?

What Measurement Classes should Suppliers use for Export Metering Systems?

What are the new (and amended) CCC Ids?

When will the new (and amended) CCC Ids be introduced?

What changes do HHDAs need to make?

What is the effective date of the new CCC Ids?

What happens if the HHDAs carries out an aggregation run in advance of the scheduled date in the Settlement Calendar?

What happens if the HHDA is unable to implement its P339 changes ahead of the 3 April runs?

What do DNOs/IDNOs need to set up and when?

What is the format of the mapping file (P0239)?

What codes should DSOs use for the ‘dummy SSCs’ and TPRs

Who should I contact if I have any further questions?