M11 and M12 approved

◆ Published: 22/10/2025

M11 and M12 approved

At the Extraordinary Programme Steering Group (ePSG) meeting on Tuesday 21 October 2025, the Senior Responsible Owner (SRO) approved two key milestones: 

  • Milestone 11 (M11): Commencement of the 18-month migration period for Unmetered Supplies (UMS) and Advanced Metered Meter Point Administration Numbers (MPANs) 
  • Milestone 12 (M12): Commencement of the 18-month migration period for Smart and Non-Smart Metered MPANs

The approval of M11 and M12 marks the formal start of the industry-wide migration phase. Programme participants will now begin migrating customers to the new MHHS arrangements, with activities coordinated through the Migration Control Centre (MCC) and monitored through established Programme governance structures. 

This milestone represents a pivotal moment for the Programme, as we collectively progress toward full migration completion at Milestone 15 (M15) and transition to new settlement arrangements at Milestone 16 (M16). 

The Programme will continue to share updates through The Clock and across governance forums as we move decisively into the next phase of delivery. 

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