1. DEFINITIONS

In each part of this Schedule 19 the following expressions (in addition to those specified in Schedule 1 (Definitions) shall, save where the context or express provisions of this Contract otherwise requires or admits, have the following meanings:

Base Case Change Date	means the date that any revisions to the Base Case are made and shall be the date that the Relevant Event becomes operative as set out in this Contract, or if no date is specified, the date agreed by the Parties pursuant to paragraph 4.2 of this Schedule 19.
Custodian	means [to be specified];
Custody Agreement	means the agreement entered into between the Authority, the Contractor and the Custodian in respect of the safe custody of the Base Case;