Drive cycle definition

Drive cycle means either the period of time from when a motor vehicle is initially turned on to the next time the ignition is turned off, or the period of time from when an initial breath alcohol test is performed and failed, to the time a breath alcohol test is successfully taken and the ignition is turned off.
Drive cycle means either the period of time from when a vehicle’s ignition is initially turned on to the next time the ignition is turned off, or the period of time from when an initial breath alcohol test is performed and failed, to the time such test is successfully taken and the ignition is turned on.