1. Restricted Invoice Period Criteria Rochelle Hudson

2. Background Review Group 126 to decide the close out period for invoice back billing for all invoice types & all adjustments/reconciliations. The group needs to decide on the optimum time period that limits the risk to gas industry of unreconciled & misallocated energy, whilst ensuring the efficient & effective operation of the system … The review group criteria should pinpoint the minimum rolling cut-off period, currently thought to be between 3 & 5 years.

3. Criteria Split the criteria into two areas: Market (all parties including Ofgem) Shippers/Suppliers Ofgem criteria from response to Mods 117 & 122

4. Criteria 1 - Market Enable robust & enduring regime Enable the efficient, effective & coordinated operation of the network(s) Enable competitiveness of the market Enable the discharge License Obligations Provide reasonable economic incentives for relevant suppliers to secure domestic customer supply … Support coordinated, combined pipe-line system or system of one or more other relevant gas transporters Provide efficiency in the implementation & administration of the UNC

5. Criteria 2 - UNC Parties As criteria 1 - market plus Timing of Mod 640, 94 & 95 adjustments Portfolio accuracy, dispute clearance & financial adjustments Limit unread sites & provide must read incentives Provide USRV resolution & incentives Support supplier billing obligations Other impacts on RbD/Reconciliation?