On-Road Vehicle and Engine Emission Regulations — 1
assenger compartment. ( véhicule moyen à passagers ) model year means the year, as determined under section 5, that is used by a manufacturer to designate a model of vehicle or engine. ( année de modèle ) motorcycle means an on-road vehicle with a headlight, tail light and stoplight that has two or three wheels and a curb weight of 793 kg (1,749 lb) or less. ( motocyclette ) NMHC means non-methane hydrocarbon exhaust emissions. ( HCNM ) NMOG + NO X means the sum of the non-methane organic gas exhaust emissions and the NO X exhaust emissions. ( GONM + NO X ) nominal fuel tank capacity means the volume of the fuel tank specified by the manufacturer to the nearest three eighths of a litre (one tenth of a U.S. gallon). ( capacité nominale du réservoir à carburant ) NOx means oxides of nitrogen, which is the sum of nitric oxide and nitrogen dioxide contained in a gas sample as if the nitric oxide were in the form of nitrogen dioxide. ( NOx ) on-road vehicle means a self-propelled vehicle designed for or capable of transporting persons, property, material or permanently or temporarily affixed apparatus on a highway, but does not mean a vehicle that (a) cannot exceed a speed of 40 km/h (25 mph) on a level paved surface; (b) lacks features customarily associated with safe and practical highway use such as a reverse gear, unless the vehicle is a motorcycle, a differential, or safety features required by federal or provincial laws; (c) exhibits features that render its use on a highway unsafe, impractical, or highly unlikely, such as tracked road contact means or inordinate size; or (d) is a military vehicle designed for use in combat or combat support. ( véhicule routier ) Otto-cycle engine means a type of engine that has operating characteristics that are significantly similar to those of the theoretical Otto combustion cycle. The use of a throttle during normal operation is indicative of an Otto-cycle engine. ( moteur à cycle Otto ) Otto-cycle heavy-duty vehicle means a heavy-duty vehicle that is powered by an Otto-cycle engine. ( véhicule lourd à cycle Otto ) rounded means rounded in accordance with the rounding method described in section 6 of the ASTM International method ASTM E 29-93a, entitled Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications . ( arrondir ) static loaded radius arc means a portion of a circle whose centre is the centre of a standard tire-rim combination of a vehicle and whose radius is the distance from that centre to the level surface on which the vehicle is standing, measured with the vehicle at curb weight, the wheel parallel to the vehicle’s longitudinal centreline, and the tire inflated to the manufacturer’s recommended pressure. ( arc du rayon sous charge ) test group means, in respect of a company’s vehicles other than its motorcycles, (a) if they are covered by an EPA certificate, the grouping for which the EPA certificate was issued; and (b) if they are not covered by an EPA certificate, the grouping determined in accordance with section 1827 of Title 40, chapter I, subchapter C, part 86, subpart S, of the CFR. ( groupe d’essai ) tractor means a heavy-duty vehicle that has a GVWR of more than 11 793 kg (26,000 lb) and that is manufactured primarily for pulling a trailer but not for carrying cargo other than cargo in the trailer. ( tracteur routier ) useful life , in respect of a vehicle or engine, means the period of time or use, whether full or intermediate, during which an emission standard applies as set out in the CFR. ( durée de vie utile ) (2) Standards that are incorporated by reference in these Regulations from the CFR are those expressly set out in the CFR and shall be read as excluding (a) references to the EPA or the Administrator of the EPA exercising discretion in any way; (b) alternative standards related to fleet averages, other averages, emission credits, small volume manufacturers, or financial hardship; and (c) standards or evidenc