8.3 Required revisions
8.3.1 During the period of consultation under paragraph 8.2 (Consultation on annual Maintenance Services Plan) MRTA may by notice to the Concessionaire pursuant to this paragraph require that the Concessionaire revise the annual Maintenance Services Plan if it does not comply with any of the following:
(a) The requirements of paragraph 8.1 (Preparation of annual Maintenance Services Plan); or
(b) The requirement of any notice served by MRTA under this Agreement.
8.3.2 Following service of any such notice by MRTA, the Concessionaire shall address the issues raised by MRTA in such notice and submit a revised version of the annual Maintenance Services Plan to MRTA for approval.
8.4 Annual Maintenance Services Plan to take effect
8.4.1 The first annual Maintenance Services Plan shall take effect on the Purple Line Trial Operation Commencement Date and shall apply to the Purple Line, Khlong Bang Phai Station to Tao Poon Station Section. Any subsequent annual Maintenance Services Plan shall not take effect until the beginning of the Agreement Year to which it relates or, if later, the end of the consultation period under paragraph 8.2 (Consultation on annual Maintenance Services Plan). Any planned changes to the asset management regime, asset management strategy or maintenance procedures which are set out in the annual Maintenance Services Plan shall not take effect until the Concessionaire has got approval from the MRTA.
8.4.2 The Concessionaire shall implement the Maintenance Services in accordance with the annual Maintenance Services Plan and shall at all time comply with the annual Maintenance Services Plan which is in effect pursuant to this paragraph 8.4.