27.1 The Authority shall have the right to refuse admittance to, or order the removal from, the Facilities of any person employed by (or acting on behalf of) Project Co, any Project Co Party or any sub-contractor whose presence, in the reasonable opinion of the Authority, is likely to have a material adverse effect on the provision by the Authority of the relevant Authority Services at the Facilities or who is not a fit and proper person to be in the Facilities.
27.2 Action taken under Clause 27.1 shall forthwith be confirmed in writing by the Authority to Project Co and, to avoid doubt, shall not relieve Project Co of any of its obligations under this Agreement.
27.3 If and when so directed in writing by the Authority, Project Co shall within twenty (20) Business Days provide a list of the names and addresses of all persons it expects may require admission in connection with this Agreement, to any premises occupied by the Authority, specifying the capacities in which those persons are concerned with this Agreement and giving such other particulars as the Authority may reasonably require.
27.4 The decision of the Authority as to whether any person is to be refused admission shall be final and conclusive.