1.1.1 The requirements of this Chapter apply to equipment fitted to combustion
                                 machinery in order to reduce emissions produced by the combustion of fuel. Such
                                 equipment is hereinafter referred to as emissions abatement plant. These requirements
                                 are intended to ensure that the emissions abatement plant is safe to operate and
                                 maintain and, additionally, where the combustion machinery provides power for Mobility
                                 and/or Ship Type systems, that failure of the emissions abatement plant does not result
                                 in an unacceptable loss or degradation of those systems. These requirements do not
                                 provide for the reliability or redundancy necessary to ensure continued operation of the
                                 emissions abatement plant, and thereby compliance with relevant emissions requirements,
                                 following failure of any equipment associated with the emissions abatement plant.