[ANNEX IIIA U.K. VERIFYING REAL DRIVING EMISSIONS
1. INTRODUCTION, DEFINITIONS AND ABBREVIATIONS U.K.
1.2. Definitions U.K.
1.2.11. ‘ Exhaust ’ , also referred to as exhaust gas, means the total of all gaseous and particulate components emitted at the exhaust outlet or tailpipe as the result of fuel combustion within the vehicle's internal combustion engine.] U.K.