Celebrating a major milestone: Successful completion of Programme Milestone 8 (M8): Code Drafting activity   

We're delighted to announce the successful completion of Programme delivery of Code Drafting activities, a significant milestone in our journey towards MHHS.  
 
At the Extraordinary Cross-Code Advisory Group (eCCAG) meeting on 12 September 2025, CCAG recommended to the Senior Responsible Owner (SRO) that all the workstream criteria had been met and the Code Body M8 delivery was on track for 22 September delivery. Following completion of M8, Code queries should now be raised with Code Bodies directly. 
  
The Programme would like to thank everyone who has contributed to achieving this milestone, but in particular to the following people whose hard work has been invaluable to achieving this Tier 2 milestone: 

• MHHS Programme Code Lead: Andrew Margan for leading the workstream, producing the strategy, and creating and managing the workstream plan 
• Code Drafting team: Matthew McKeon, Kevin Spencer, Mark DeSouza-Wilson, Derek Weaving and Simon Chidwick for drafting and progressing the Balancing & Settlement Code (BSC) Code Artefacts through the relevant Programme governance processes 
• Ofgem: Jenny Boothe and Andy McFaul for supporting the governance and approving the Significant Code Review (SCR) Code changes 
• Elexon, the Balancing & Settlement Code Company (BSCCo): Lawrence Jones, Colin Berry, Jacob Snowden and Sam Gill for their assurance support and progressing the changes through BSC governance 
• Retail Energy Code Company (RECCo): Andrew Wallace, Sarah Jones and Harriet Truss for managing and updating the REC changes through Programme and REC governance 
• Distribution Connection and Use of System Agreement (DCUSA): John Lawton for managing the DCUSA changes through Programme and DCUSA governance 
• Delegated SRO: Chris Welby for chairing CCAG and supporting workstream activities 
• Workstream Assurance: Jason Brogden for workstream and plan assurance 

The Code Artefacts will formally go-live on Monday 22 September 2025. The CCAG will formally close the Code workstream on Wednesday 24 September 2025, following the final CCAG meeting. This means that on 22 September the MHHS Target Operating Model (TOM) and Design will be codified, creating the legal baseline for the MHHS arrangements.