You must calculate the average fuel economy for Government motor vehicles as follows:
(a)
Because there are so many motor vehicle configurations, you must take an average of all light duty motor vehicles by category that your agency obtained and operated during the fiscal year.
(b)
This calculation is the sum of such light duty motor vehicles divided by the sum of the fractions representing the number of motor vehicles of each category by model divided by the unadjusted city/highway mile-per-gallon ratings for that model. The unadjusted city/highway mile-per-gallon ratings for each make and model are published by the Environmental Protection Agency (EPA) for each model year and published at http://www.fueleconomy.gov.
Code of Federal Regulations
[Please see PDF for image:
ER20MR09.000
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