MPAN Ownership
Please note that as of 1 September 2025, the MHHS Programme Design mailbox, Design artefacts and the Design Issues Notification (DIN) log on the MHHS website are no longer monitored or updated. They are retained for historical reference only.
Following Milestone 8 (M8), the Target Operating Model (TOM) and MHHS Design were fully codified, and the Code Bodies no longer maintain standalone Programme artefacts. The live Code and Code Subsidiary Documents are now the single source of truth, and any changes made through Code governance will not appear in the historical documents.
You can view the latest artefacts online, directly from the respective Code Bodies websites, listed below:
Balancing & Settlement Code (BSC)
Retail Energy Code (REC)
Distribution Connection and Use of System Agreement (DCUSA)
For the latest information or to raise queries, please use the Elexon Support Portal or contact the respective Code Bodies directly.
MPAN Ownership Baselined Design Artefact Library
The Baselined Design Artefacts have been grouped into four Libraries for ease of review.
The MPAN Ownership Baselined Artefact Library is shown below, covering the processes associated with the appointment of parties such as supplier, metering service or data service. There is a search function on the top right of the library view to assist in finding a document.
The other three Baselined Design Artefact Libraries can be accessed via the menu on this site, or the links below:
Metering Changes
Meter to Bank
Supporting Documents
Note: several of these documents are Excel spreadsheets so unlike PDF documents that will open on a tab, they will be in your ‘downloads’ folder.
MPAN Ownership Baselined Design Artefact Library
| Short Name | Doc Number | Sub Type | Status | Version |
|---|---|---|---|---|
| Change of Registration Data Business Process Descriptions | BPD010 | Business Process Descriptions | Draft | v5.3 |
| Interface Catalogue | DES138 | Interface Specifications | Approved | v5.8.8 |
| Interface Catalogue | DES138 | Interface Specifications | Approved | v5.8.7 |
| CSS and DCC Update Business Process | BP003A | Business Process Diagrams | Approved | v5.0 |
| Interface Catalogue | DES138 | Interface Specifications | Approved | v5.8.6 |
| Interface Catalogue | DES138 | Interface Specifications | Approved | v5.5.5 |
| Change of Data Service Business Process Descriptions | BPD003 | Business Process Descriptions | Approved | v5.1 |
| Transfer of Reads Business Process Descriptions | BPD003C | Business Process Descriptions | Approved | v5.1 |
| Transfer of Reads - Change of Data Service Business Process | BP003C | Business Process Diagrams | Approved | v5.2 |
| Change of Service - Metering Service Business Process | BP002 | Business Process Diagrams | Approved | v5.4 |
| Interface Catalogue | DES138 | Interface Specifications | Draft | v5.8.9 |
| Change of Service - Data Service Business Process | BP003 | Business Process Diagrams | Approved | v5.7 |
| Change of Registration Data Business Process | BP010 | Business Process Diagrams | Approved | v5.5 |
| Interface Catalogue | DES138 | Unclassified | Draft | v5.8.4 |
| Change of Supply Business Process | BP001 | Business Process Diagrams | Draft | v5.2 |
| CSS and DCC Update Business Process Descriptions | BPD003A | Business Process Descriptions | Approved | v5.0 |
| Change of Metering Service Business Process Descriptions | BPD002 | Business Process Descriptions | Approved | v5.2 |
| Interface Catalogue | DES138 | Interface Specifications | Draft | v5.7.3 |
| Change of Supply Business Process | BP001 | Business Process Diagrams | Approved | v5.1 |
| Change of Supply Business Process Descriptions | BPD001 | Business Process Descriptions | Approved | v5.1 |
| Change of Existing Service Appointment Business Process Descriptions | BPD003B | Business Process Descriptions | Approved | v5.0 |
| Change of Existing Service Appointment Details Business Process | BP003B | Business Process Diagrams | Approved | v5.0 |
