FEadj = FE[((0.55 * ag * c) + (0.45 * c) + (0.5556 * ag) + 0.4487)/((0.55 * ag) + 0.45)] + IWg
Where:
FEadj = Fuel economy value to be used for determination of gas guzzler tax assessment rounded to the nearest 0.1 mpg.
FE = Combined model type fuel economy calculated in accordance with § 600.208 , rounded to the nearest 0.0001 mpg.
ag = Model type highway fuel economy, calculated in accordance with § 600.208 , rounded to the nearest 0.0001 mpg divided by the model type city fuel economy calculated in accordance with § 600.208 , rounded to the nearest 0.0001 mpg. The quotient shall be rounded to 4 decimal places.
c = gas guzzler adjustment factor = 1.300 * 10-3 for the 1986 and later model years.
IWg = (9.2917 * 10-3 * SF3IWCGFE3IWCG) - (3.5123 * 10-3 * SF4ETWG * FE4IWCG).
Note: Any calculated value of IW less than zero shall be set equal to zero.
SF3IWCG = The 3000 lb. inertia weight class sales in the model type divided by the total model type sales; the quotient shall be rounded to 4 decimal places.
SF4ETWG = The 4000 lb. equivalent test weight sales in the model type divided by the total model type sales, the quotient shall be rounded to 4 decimal places.
FE3IWCG = The 3000 lb. inertial weight class base level combined fuel economy used to calculate the model type fuel economy rounded to the nearest 0.0001 mpg.
FE4IWCG = The 4000 lb. inertial weight class base level combined fuel economy used to calculate the model type fuel economy rounded to the nearest 0.001 mpg.
At least * * * | but less than * * * | the Gas Guzzler Tax statement shall show a tax of * * * |
(i) 22.5 | $0 | |
(ii) 21.5 | 22.5 | $1,000 |
(iii) 20.5 | 21.5 | $1,300 |
(iv) 19.5 | 20.5 | $1,700 |
(v) 18.5 | 19.5 | $2,100 |
(vi) 17.5 | 18.5 | $2,600 |
(vii) 16.5 | 17.5 | $3,000 |
(viii) 15.5 | 16.5 | $3,700 |
(ix) 14.5 | 15.5 | $4,500 |
(x) 13.5 | 14.5 | $5,400 |
(xi) 12.5 | 13.5 | $6,400 |
(xii) - | 12.5 | $7,700 |
40 C.F.R. §600.513-08