(a) Except as provided in paragraph (f) of this section, each manufacturer of passenger automobiles shall comply with the fleet average fuel economy standards in Table 1 to this paragraph (a), expressed in miles per gallon, in the model year specified as applicable:

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Terms Used In 49 CFR 531.5

  • Corporation: A legal entity owned by the holders of shares of stock that have been issued, and that can own, receive, and transfer property, and carry on business in its own name.

Table 1 to § 531.5(a)

Model yearAverage fuel economy standard (miles per gallon)
197818.0
197919.0
198020.0
198122.0
198224.0
198326.0
198427.0
198527.5
198626.0
198726.0
198826.0
198926.5
1990-201027.5

(b) For model year 2011, a manufacturer’s passenger automobile fleet shall comply with the fleet average fuel economy level calculated for that model year according to Figure 1 to this paragraph (b) and the appropriate values in Table 2 to this paragraph (b).

Where:N is the total number (sum) of passenger automobiles produced by a manufacturer;Ni is the number (sum) of the ith passenger automobile model produced by the manufacturer; andTi is the fuel economy target of the ith model passenger automobile, which is determined according to the following formula, rounded to the nearest hundredth:Where:Parameters a, b, c, and d are defined in Table 2 to this paragraph (b);e = 2.718; andx = footprint (in square feet, rounded to the nearest tenth) of the vehicle model.

Table 2 to § 531.5(b)—Parameters for the Passenger Automobile Fuel Economy Targets

Model yearParameters
a (mpg)b (mpg)c (gal/mi/ft2)d (gal/mi)
201131.2024.0051.411.91

(c) For model years 2012-2026, a manufacturer’s passenger automobile fleet shall comply with the fleet average fuel economy level calculated for that model year (MY) according to Figure 2 to this paragraph (c) and the appropriate values in Table 3 to this paragraph (c).

Where:CAFErequired is the fleet average fuel economy standard for a given fleet (domestic passenger automobiles or import passenger automobiles);Subscript i is a designation of multiple groups of automobiles, where each group’s designation, i.e., i = 1, 2, 3, etc., represents automobiles that share a unique model type and footprint within the applicable fleet, either domestic passenger automobiles or import passenger automobiles;Productioni is the number of passenger automobiles produced for sale in the United States within each ith designation, i.e., which share the same model type and footprint; andTARGETi is the fuel economy target in miles per gallon (mpg) applicable to the footprint of passenger automobiles within each ith designation, i.e., which share the same model type and footprint, calculated according to Figure 3 to this paragraph (c) and rounded to the nearest hundredth of a mpg, i.e., 35.455 = 35.46 mpg, and the summations in the numerator and denominator are both performed over all models in the fleet in question.Where:TARGET is the fuel economy target (in mpg) applicable to vehicles of a given footprint (FOOTPRINT, in square feet);Parameters a, b, c, and d are defined in Table 3 to this paragraph (c); andThe MIN and MAX functions take the minimum and maximum, respectively, of the included values.

Table 3 to § 531.5(c)—Parameters for the Passenger Automobile Fuel Economy Targets

[MYs 2012-2026]

Model yearParameters
a
(mpg)		b
(mpg)		c
(gal/mi/ft2)		d
(gal/mi)
201235.9527.950.00053080.006057
201336.8028.460.00053080.005410
201437.7529.030.00053080.004725
201539.2429.900.00053080.003719
201641.0930.960.00053080.002573
201743.6132.650.00051310.001896
201845.2133.840.00049540.001811
201946.8735.070.00047830.001729
202048.7436.470.00046030.001643
202149.4837.020.0004530.00162
202250.2437.590.0004470.00159
202351.0038.160.0004400.00157
202455.4441.480.0004050.00144
202560.2645.080.0003720.00133
202666.9550.090.0003350.00120

(d) In addition to the requirements of paragraphs (b) and (c) of this section, each manufacturer shall also meet the minimum fleet standard for domestically manufactured passenger automobiles expressed in Table 4 to this paragraph (d):

Table 4 to § 531.5(d)—Minimum Fuel Economy Standards for Domestically Manufactured Passenger Automobiles

[MYs 2011-2026]

Model yearMinimum standard
201127.8
201230.7
201331.4
201432.1
201533.3
201634.7
201736.7
201838.0
201939.4
202040.9
202139.9
202240.6
202341.1
202444.3
202548.1
202653.5

(e) The following manufacturers shall comply with the standards indicated in paragraphs (e)(1) through (15) of this section for the specified model years:

(1) Avanti Motor Corporation.

Table 5 to § 531.5(e)(1)—Average Fuel Economy Standards

Model yearMiles per gallon
197816.1
197914.5
198015.8
198118.2
198218.2
198316.9
198416.9
198516.9

(2) Rolls-Royce Motors, Inc.

Table 6 to § 531.5(e)(2)—Average Fuel Economy Standards

Model yearMiles per gallon
197810.7
197910.8
198011.1
198110.7
198210.6
19839.9
198410.0
198510.0
198611.0
198711.2
198811.2
198911.2
199012.7
199112.7
199213.8
199313.8
199413.8
199514.6
199614.6
199715.1
199816.3
199916.3

(3) Checker Motors Corporation.

Table 7 to § 531.5(e)(3)—Average Fuel Economy Standards

Model yearMiles per gallon
197817.6
197916.5
198018.5
198118.3
198218.4

(4) Aston Martin Lagonda, Inc.

Table 8 to § 531.5(e)(4)—Average Fuel Economy Standards

Model yearMiles per gallon
197911.5
198012.1
198112.2
198212.2
198311.3
198411.3
198511.4

(5) Excalibur Automobile Corporation.

Table 9 to § 531.5(e)(5)—Average Fuel Economy Standards

Model yearMiles per
gallon
197811.5
197911.5
198016.2
198117.9
198217.9
198316.6
198416.6
198516.6

(6) Lotus Cars Ltd.

Table 10 to § 531.5(e)(6)—Average Fuel Economy Standards

Model yearMiles per
gallon
199424.2
199523.3

(7) Officine Alfieri Maserati, S.p.A.

Table 11 to § 531.5(e)(7)—Average Fuel Economy Standard

Model yearMiles per
gallon
197812.5
197912.5
19809.5
198417.9
198516.8

(8) Lamborghini of North America.

Table 12 to § 531.5(e)(8)—Average Fuel Economy Standard

Model yearMiles per
gallon
198313.7
198413.7

(9) LondonCoach Co., Inc.

Table 13 to § 531.5(e)(9)—Average Fuel Economy Standard

Model yearMiles per
gallon
198521.0
198621.0
198721.0

(10) Automobili Lamborghini S.p.A./Vector Aeromotive Corporation.

Table 14 § 531.5(e)(10)—Average Fuel Economy Standard

Model yearMiles per
gallon
199512.8
199612.6
199712.5

(11) Dutcher Motors, Inc.

Table 15 to § 531.5(e)(11)—Average Fuel Economy Standard

Model yearMiles per
gallon
198616.0
198716.0
198816.0
199217.0
199317.0
199417.0
199517.0

(12) MedNet, Inc.

Table 16 to § 531.5(e)(12)—Average Fuel Economy Standard

Model yearAverage
fuel
economy
standard
(miles per
gallon)
199617.0
199717.0
199817.0

(13) Vector Aeromotive Corporation.

Table 17 to § 531.5(e)(13)—Average Fuel Economy Standard

Model yearMiles per
gallon
199812.1

(14) Qvale Automotive Group Srl.

Table 18 to § 531.5(e)(14)—Average Fuel Economy Standard

Model yearMiles per
gallon
200022.0
200122.0

(15) Spyker Automobielen B.V.

Table 19 to § 531.5(e)(15)—Average Fuel Economy Standard

Model yearMiles per
gallon
200618.9
200718.9
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