Means the document set out in Schedule 11 which has the content described at Section A3.33 (The TS Applicability Tables).
Rows that are depicted by a cross in each cell indicate that either the Maintenance End Date or GBCS Applicability Period End Date has been applied and energy suppliers should have taken all reasonable steps to ensure that there are no Devices operating with that combination of Technical Specification and GBCS once the end date has passed.