Marine Spark-Ignition Engine, Vessel and Off-road Recreational Vehicle Emission Regulations — 29
Calculation of fleet average emission values 29 (1) The fleet average emission value for a fleet of vehicles is determined, in respect of each emission type, in accordance with the following formula, expressed to one decimal place and in the same units as the applicable standard set out in any of sections 20 to 22, as the case may be: The formula for the determination of the fleet average emission value for a fleet of vehicles is the quotient of the following two sums: the sum of the products resulting from the multiplication of Wi, Yi and Zi for each emission family, “i”, in the fleet and the sum of the products resulting from the multiplication of Yi and Zi for each emission family, “i”, in the fleet. where TOT is the total number of emission families in the fleet; “i” is the i th emission family in the fleet, where “i” goes from 1 to TOT; W i is the family emission limit applicable to the emission family “i”, expressed in the same units and to the same number of decimal places as the emission standard it replaces; Y i is, in the case of exhaust emissions, the number of vehicles in the fleet that are in the emission family “i” and, in the case of evaporative emissions, the number of vehicles in the fleet that are in the emission family “i” multiplied by the average internal surface area of the vehicles’ fuel tanks expressed in metres squared; and Z i is determined as follows: (a) for a fleet of snowmobiles, (i) in the case of exhaust emissions, the useful life for the emission family “i” expressed in kilometres — as established under section 103(c) of subpart B of CFR 1051 — multiplied by the maximum power output observed during the emissions test expressed in kilowatts divided by 30 km/h, and (ii) in the case of evaporative emissions, the useful life for the emission family “i” expressed in years — as established under section 103(c) of subpart B of CFR 1051 — multiplied by 365.24 days/year; (b) for a fleet of off-road motorcycles, (i) in the case of exhaust emissions, the useful life for the emission family “i” expressed in kilometres, as established under section 105(c) of subpart B of CFR 1051, and (ii) in the case of evaporative emissions, the useful life for the emission family “i”, referred to in subparagraph (i), expressed in years multiplied by 365.24 days/year; and (c) for a fleet of all-terrain vehicles or utility vehicles, (i) in the case of exhaust emissions, for those vehicles that must conform to a family emission limit expressed in g/km, the useful life for the emission family “i” expressed in kilometres — as established under section 107(c) of subpart B of CFR 1051 — and for those vehicles that must conform to a family emission limit expressed in g/kW-h, Z is that useful life for the emission family “i” expressed in kilometres multiplied by the maximum power output observed during the emissions test expressed in kilowatts and divided by 30 km/h, and (ii) in the case of evaporative emissions, the useful life for the emission family “i”, referred to in subparagraph (i), expressed in years multiplied by 365.24 days/year. Emission limits expressed in g/kW-h (2) In the case of vehicles of a fleet that must conform to a family emission limit expressed in g/kW-h set out in section 145(b) of subpart B of CFR 1051 or section 615(a) or (b) of subpart G of CFR 1051, the company must determine a separate fleet average emission value for those vehicles in respect of each emission type, as if those vehicles were a fleet. Vehicles — before the coming into force date (3) For the purposes of determining the fleet average emission value under subsection (1) for a fleet for the 2012 model year, the company may include all vehicles for that model year, including those whose main assembly is completed before this section comes into force.