This page contains proposed Ad hoc SEC Releases targeted for implementation up to and including 31 December 2026. These changes consist of both SEC documentation only and DCC System impacting changes arising from SEC Modification Proposals. A list of modifications targeted for an Ad hoc SEC Release in 2026 is outlined below:

Implementation date
31/12/2026
Modification Number Modification Name Stage Implementation Date Last Updated
MP311Additional Out of Region Communications Hubs AmendmentsImplemented12/01/202616/01/2026
MP309Housekeeping changes for SEC Section G – SecurityImplemented26/01/202617/07/2026
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