49 C.F.R. § A to Part 533

Current through September 30, 2024
Appendix A to Part 533 - Example of Calculating Compliance Under Section 533.5(i)

Assume a hypothetical manufacturer (Manufacturer X) produces a fleet of light trucks in MY 2012 as follows:

Appendix A-Table I

Model type DescriptionActual measured fuel economy (mpg) Volume
Group Carline name Basic engine
(L)
Transmission class
1Pickup A 2WD4A5Reg cab, MB27.1800
2Pickup B 2WD4M5Reg cab, MB27.6200
3Pickup C 2WD4.5A5Reg cab, LB23.9300
4Pickup C 2WD4M5Ext cab, MB23.7400
5Pickup C 4WD4.5A5Crew cab, SB23.5400
6Pickup D 2WD4.5A6Crew cab, SB23.6400
7Pickup E 2WD5A6Ext cab, LB22.7500
8Pickup E 2WD5A6Crew cab, MB22.5500
9Pickup F 2WD4.5A5Reg cab, LB22.51,600
10Pickup F 4WD4.5A5Ext cab, MB22.3800
11Pickup F 4WD4.5A5Crew cab, SB22.2800
Total6,700

Note to Table I to this appendix: Manufacturer X's required fleet average fuel economy standard level would first be calculated by determining the fuel economy targets applicable to each unique model type and footprint combination for model type groups 1-11 as illustrated in Table II to this appendix.

Manufacturer X calculates a fuel economy target standard for each unique model type and footprint combination.

Appendix A-Table II

Model typeDescriptionBase tire
size
Wheelbase (inches)Track
width F&R
average
(inches)
Footprint (ft2)VolumeFuel economy target standard (mpg)
GroupCarline nameBasic
engine (L)
Transmission class
1Pickup A 2WD4A5Reg cab, MB235/75R15100.068.847.880027.30
2Pickup B 2WD4M5Reg cab, MB235/75R15100.068.247.420027.44
3Pickup C 2WD4.5A5Reg cab, LB255/70R17125.068.859.730023.79
4Pickup C 2WD4M5Ext cab, MB255/70R17125.068.859.740023.79
5Pickup C 4WD4.5A5Crew cab, SB275/70R17150.069.071.940022.27
6Pickup D 2WD4.5A6Crew cab, SB255/70R17125.068.859.740023.79
7Pickup E 2WD5A6Ext cab, LB255/70R17125.068.859.750023.79
8Pickup E 2WD5A6Crew cab, MB285/70R17125.069.260.150023.68
9Pickup F 2WD4.5A5Reg cab, LB255/70R17125.068.959.81,60023.76
10Pickup F 4WD4.5A5Ext cab, MB275/70R17150.069.071.980022.27
11Pickup F 4WD4.5A5Crew cab, SB285/70R17150.069.272.180022.27
Total6,700

Note to Table II to this appendix: With the appropriate fuel economy targets determined for each unique model type and footprint combination, Manufacturer X's required fleet average fuel economy standard would be calculated as illustrated in Figure 1 to this appendix:

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49 C.F.R. §A to Part 533

84 FR 51362, 11/26/2019; 87 FR 26070, 7/1/2022

Note to Figure 2 to this appendix: Since the actual fleet average fuel economy performance of Manufacturer X's fleet is 23.3 mpg, as compared to its required fleet fuel economy standard of 23.7 mpg, Manufacturer X did not comply with the CAFE standard for MY 2012 as set forth in § 533.5(i) .