M15 Acceptance Criteria

The M15 Acceptance Criteria document defines the acceptance criteria for M15, including the Meter Point Administration Number (MPAN) states that will be ‘acceptable’ and ‘unacceptable’ at M15. 

M15 is planned to take place in October 2026, and is currently defined as ‘Full Transition Complete’, i.e., all MPANs have been migrated to the MHHS arrangements and none remain in the legacy arrangements. 

The M15 Acceptance Criteria document was approved and baselined to v1.0 at the Testing & Migration Advisory Group (TMAG) (now the Migration & Cutover Advisory Group (MCAG)) meeting on Wednesday 20 December 2023. You can view the approved document below:

M15 Acceptance Criteria v1.0
If you have any questions, please email the Migration Team at [email protected]