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Market Domain Data (MDD) Circulars

ELEXON sends out MDD Circulars in accordance with BSCP509 - Changes to Market Domain Data. Circulars are sent to Market Participants to:

ask them to impact assess each change request raised for a particular version;
notify Market Participants of the actual changes to MDD for a particular version; and
outline the MDD release schedule for when each version will be published and the go-live dates.

If you would like to be on the distribution list in order to receive MDD circulars please send an email to MDDC@elexon.co.uk or contact the MDD Co-ordinator directly on 020 7380 4347.

To view a MDD Circular, select a Circular number from the table below.

Notify me when a document is added/updated to this table

MDD Circular	Issue Date
MDD00385: MDD Change Requests for Impact Assessment (110Kb)	04/08/2008
MDD00385a: Attachments - Change Requests (141Kb)	04/08/2008
MDD00384: Changes to Market Domain Data (146) (141Kb)	22/07/2008
MDD00384a: Attachments - Change Requests (194Kb)	22/07/2008
MDD00383: MDD Change Requests for Impact Assessment (112Kb)	08/07/2008
MDD00383a: Attachments - Change Requests (196Kb)	08/07/2008
MDD00382: Changes to Market Domain Data (145) (64Kb)	18/06/2008
MDD00382a: Attachments - Change Requests (670Kb)	18/06/2008
MDD00381: MDD Change Requests for Impact Assessment (103Kb)	04/06/2008
MDD00381a: Attachments - Change Requests (670Kb)	04/06/2008
MDD00380: Changes to Market Domain Data (144) (64Kb)	21/05/2008
MDD00380a: Attachments - Change Requests (183Kb)	21/05/2008
MDD00379: MDD Change Requests for Impact Assessment (111Kb)	07/05/2008
MDD00379a: Attachments - Change Requests (183Kb)	07/05/2008
MDD00378: Changes to Market Domain Data (143) (65Kb)	22/04/2008
MDD00378a: Attachments - Change Requests (200Kb)	22/04/2008
MDD00377: MDD Change Requests for Impact Assessment (112Kb)	08/04/2008
MDD00377a: Attachments - Change Requests (200Kb)	08/04/2008
MDD00376: Changes to Market Domain Data (142) (68Kb)	27/03/2008
MDD00376a: Attachments - Change Requests (1.4Mb)	27/03/2008
MDD00375: MDD Change Requests for Impact Assessment (129Kb)	11/03/2008
MDD00375a: Attachments - Change Requests (1.5Mb)	11/03/2008
MDD00374: Changes to Market Domain Data (141) (69Kb)	26/02/2008
MDD00374a: Attachments - Change Requests (2.2Mb)	26/02/2008
MDD00373: Change Requests for Impact Assessment (129Kb)	12/02/2008
MDD00373a: Attachments - Change Requests (603Kb)	12/02/2008
MDD00372: Changes to Market Domain Data (140) (62Kb)	22/01/2008
MDD00372a: Attachments - Change Requests (355Kb)	22/01/2008
MDD00371: MDD Change Requests for Impact Assessment (117Kb)	08/01/2008
MDD00371a: Attachments - Change Requests (368Kb)	08/01/2008