Regulation 3(1) of the Principal Regulations is amended as follows:(a) by omitting the definition of breath alcohol interlock device ;(b) by inserting the following definition after the definition of hire and drive vehicle :I condition means the condition specified in regulation 24(3)(f) ;(c) by inserting the following definitions after the definition of insurer :interlock means a device or system, approved by the Registrar, that (a) is capable of being installed in a motor vehicle; and(b) once installed, only allows the engine of the motor vehicle in which it is installed to be started after the device or system (i) analyses a breath sample provided by the intended driver of the motor vehicle; and(ii) detects that the breath sample analysed contains a level of alcohol concentration below the limit set internally within the device or system;interlock licence means a driver licence that is subject to an I condition;