Engine crankcase — the spaces in or external to an engine which are connected to the oil sump by internal or external ducts through which gases and vapours can escape. 1.4. Gaseous pollutants 1.

Gaseous pollutants — carbon monoxide and hydrocarbons. 1.5. Maximum weight 1.

Maximum weight — the technically permissible maximum weight declared by the vehicle manufacturer (this weight may be greater than the permissible maximum weight) 1.

Reference weight — the weight of the vehicle in running order, increased by a uniform weight of 120 kg. The weight of the vehicle in running order is its total unladen weight with all tanks full-with the exception of the fuel tank, which must only be half full-and a set of tools and the spare wheel on board. 1.3. Engine crankcase 1.

vehicle — any vehicle with a positive-ignition engine, intended for use on the road, with or without bodywork, having at least four wheels, a permissible maximum weight of at least 400 kg and a maximum design speed equal to or exceeding 50 km/h, with the exception of agricultural tractors and machinery and public works vehicles art_1__para