Title 49
PART 531 APPENDIX
Model type | Description | Actual measured
fuel economy (mpg) |
Volume | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Group | Carline name | Basic engine (L) |
Transmission class | |||||||
1 | PC A FWD | 1.8 | A5 | 2-door sedan | 34.0 | 1,500 | ||||
2 | PC A FWD | 1.8 | M6 | 2-door sedan | 34.6 | 2,000 | ||||
3 | PC A FWD | 2.5 | A6 | 4-door wagon | 33.8 | 2,000 | ||||
4 | PC A AWD | 1.8 | A6 | 4-door wagon | 34.4 | 1,000 | ||||
5 | PC A AWD | 2.5 | M6 | 2-door hatchback | 32.9 | 3,000 | ||||
6 | PC B RWD | 2.5 | A6 | 4-door wagon | 32.2 | 8,000 | ||||
7 | PC B RWD | 2.5 | A7 | 4-door sedan | 33.1 | 2,000 | ||||
8 | PC C AWD | 3.2 | A7 | 4-door sedan | 30.6 | 5,000 | ||||
9 | PC C FWD | 3.2 | M6 | 2-door coupe | 28.5 | 3,000 | ||||
Total | 27,500 |
Note to Appendix A Table I: 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 1-9 as illustrated in Appendix A Table II:
Manufacturer X calculates a fuel economy target standard for each unique model type and footprint combination.
Appendix A Table II
Model type | Description | Base tire size | Wheelbase (inches) |
Track width
F&R average (inches) |
Footprint (ft 2) |
Volume | Fuel economy
target standard (mpg) |
|||
---|---|---|---|---|---|---|---|---|---|---|
Group | Carline name | Basic engine (L) |
Transmission class | |||||||
1 | PC A FWD | 1.8 | A5 | 2-door sedan | 205/75R14 | 99.8 | 61.2 | 42.4 | 1,500 | 35.01 |
2 | PC A FWD | 1.8 | M6 | 2-door sedan | 215/70R15 | 99.8 | 60.9 | 42.2 | 2,000 | 35.14 |
3 | PC A FWD | 2.5 | A6 | 4-door wagon | 215/70R15 | 100.0 | 60.9 | 42.3 | 2,000 | 35.08 |
4 | PC A AWD | 1.8 | A6 | 4-door wagon | 235/60R15 | 100.0 | 61.2 | 42.5 | 1,000 | 35.95 |
5 | PC A AWD | 2.5 | M6 | 2-door hatchback | 225/65R16 | 99.6 | 59.5 | 41.2 | 3,000 | 35.81 |
6 | PC B RWD | 2.5 | A6 | 4-door wagon | 265/55R18 | 109.2 | 66.8 | 50.7 | 8,000 | 30.33 |
7 | PC B RWD | 2.5 | A7 | 4-door sedan | 235/65R17 | 109.2 | 67.8 | 51.4 | 2,000 | 29.99 |
8 | PC C AWD | 3.2 | A7 | 4-door sedan | 265/55R18 | 111.3 | 67.8 | 52.4 | 5,000 | 29.52 |
9 | PC C FWD | 3.2 | M6 | 2-door coupe | 225/65R16 | 111.3 | 67.2 | 51.9 | 3,000 | 29.76 |
Total | 27,500 |
Note to Appendix A Table II: 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 Appendix A Figure 1:
Appendix A Figure 1 - Calculation of Manufacturer X's fleet average fuel economy standard using Table II:
Fleet average fuel economy standard = = 31.6 mpgAppendix A Figure 2 - Calculation of Manufacturer X's actual fleet average fuel economy performance level using Table I:
Fleet average fuel economy performance = = 32.0 mpgNote to Appendix A Figure 2: Since the actual fleet average fuel economy performance of Manufacturer X's fleet is 32.0 mpg, as compared to its required fleet fuel economy standard of 31.6 mpg, Manufacturer X complied with the CAFE standard for MY 2012 as set forth in § 531.5(c).
[77 FR 63191, Oct. 15, 2012, as amended at 84 FR 51362, Sept. 27, 2019]Appendix B to Part 531 - Preemption
49:6.1.2.3.12.0.1.8.13 : Appendix B
Appendix B to Part 531 - Preemption(a) Express Preemption:
(1) To the extent that any law or regulation of a State or a political subdivision of a State regulates or prohibits tailpipe carbon dioxide emissions from automobiles, such a law or regulation relates to average fuel economy standards within the meaning of 49 U.S.C. 32919.
(A) Automobile fuel economy is directly and substantially related to automobile tailpipe emissions of carbon dioxide;
(B) Carbon dioxide is the natural by-product of automobile fuel consumption;
(C) The most significant and controlling factor in making the measurements necessary to determine the compliance of automobiles with the fuel economy standards in this part is their rate of tailpipe carbon dioxide emissions;
(D) Almost all technologically feasible reduction of tailpipe emissions of carbon dioxide is achievable through improving fuel economy, thereby reducing both the consumption of fuel and the creation and emission of carbon dioxide;
(E) Accordingly, as a practical matter, regulating fuel economy controls the amount of tailpipe emissions of carbon dioxide, and regulating the tailpipe emissions of carbon dioxide controls fuel economy.
(2) As a law or regulation related to fuel economy standards, any law or regulation of a State or a political subdivision of a State regulating or prohibiting tailpipe carbon dioxide emissions from automobiles is expressly preempted under 49 U.S.C. 32919.
(3) A law or regulation of a State or a political subdivision of a State having the direct or substantial effect of regulating or prohibiting tailpipe carbon dioxide emissions from automobiles or automobile fuel economy is a law or regulation related to fuel economy standards and expressly preempted under 49 U.S.C. 32919.
(b) Implied Preemption:
(1) A law or regulation of a State or a political subdivision of a State regulating tailpipe carbon dioxide emissions from automobiles, particularly a law or regulation that is not attribute-based and does not separately regulate passenger cars and light trucks, conflicts with:
(A) The fuel economy standards in this part;
(B) The judgments made by the agency in establishing those standards; and
(C) The achievement of the objectives of the statute (49 U.S.C. Chapter 329) under which those standards were established, including objectives relating to reducing fuel consumption in a manner and to the extent consistent with manufacturer flexibility, consumer choice, and automobile safety.
(2) Any law or regulation of a State or a political subdivision of a State regulating or prohibiting tailpipe carbon dioxide emissions from automobiles is impliedly preempted under 49 U.S.C. Chapter 329.
(3) A law or regulation of a State or a political subdivision of a State having the direct or substantial effect of regulating or prohibiting tailpipe carbon dioxide emissions from automobiles or automobile fuel economy is impliedly preempted under 49 U.S.C. Chapter 329.
[84 FR 51362, Sept. 27, 2019]