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REGULATION FOR THE MANDATORY REPORTING OF GREENHOUSE GAS EMISSIONS - page 94 / 137

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(3)

collected fuel receipts, official logs of vehicle fuel gauges or storage tanks) as shown in section 95125(i)(2)(A), unless the operator elects to calculate fuel use from miles traveled per vehicle using the fuel economy method shown in section 95125(i)(2)(B).

(A) The operator shall use the following equation to calculate mobile source fuel consumption from fuel records data:

Fuel = FP + FSbeg – FSend

Where:

l = volume of fuel consumed, gallons per year = total fuel purchases, gallons per year = amount of fuel stored at the beginning of the year, gallons = amount of fuel stored at the end of the year, gallons Fue FP FS FS beg end

(B) The operator shall use the following equation to calculate mobile source fuel consumption using U.S. EPA fuel economy values for specific vehicle models and miles traveled per vehicle:

n Fuel = Mileagei / (FEcity,i i Where:

  • *

    DPcity,i

  • +

    FEhighway,i

  • *

    DPhighway,i

)

Fuel

= volume of fuel consumed, gallons per year

Mileagei = total miles traveled by vehicle i, miles per year

= U.S. EPA specified vehicle i fuel economy for city driving, miles per gallon = proportion of miles traveled spent in city driving conditions for vehicle i, percent/100 (0.55 may be used as a default value or a fleet specific number may be substituted if known) = U.S. EPA specified vehicle i fuel economy for highway driving, miles per gallon = proportion of miles traveled spent in highway driving conditions for vehicle i, percent/100 (0.45 may be used as a default value or a fleet specific number may be substituted if known) = total number of vehicles FEcity,i DPcity,i FEhighway,i DPhighway,i n

The operator shall use the following equation to compute mobile combustion CH4 and N2O emissions by vehicle type:

TE = EF * Mileage * 0.000001

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