§ 533.1Scope.
This part establishes average fuel economy standards pursuant to 49 U.S.C. 32902 for light trucks.
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CFR Regulation
LIGHT TRUCK FUEL ECONOMY STANDARDS
§ 533.2Purpose.
The purpose of this part is to increase the fuel economy of light trucks by establishing minimum levels of average fuel economy for those vehicles.
§ 533.3Applicability.
This part applies to manufacturers of light trucks.
§ 533.4Definitions.
(a) Statutory terms. (1) The terms average fuel economy, average fuel economy standard, fuel economy, import, manufacture, manufacturer, and model year are used as defined in 49 U.S.C. 32901.
(2) The term automobile is used as defined in 49 U.S.C. 32901 and in accordance with the determinations in part 523 of this chapter.
(b) Other terms. As used in this part, unless otherwise required by the context—
(1) Light truck is used in accordance with the determinations in part 523 of this chapter.
(2) Captive import means with respect to a light truck, one which is not domestically manufactured, as defined in section 502(b)(2)(E) of the Motor Vehicle Information and Cost Savings Act, but which is imported in the 1980 model year or thereafter by a manufacturer whose principal place of business is in the United States.
(3) 4-wheel drive, general utility vehicle means a 4-wheel drive, general purpose automobile capable of off-highway operation that has a wheelbase of not more than 280 centimeters, and that has a body shape similar to 1977 Jeep CJ-5 or CJ-7, or the 1977 Toyota Land Cruiser.
(4) Basic engine means a unique combination of manufacturer, engine displacement, number of cylinders, fuel system (as distinguished by number of carburetor barrels or use of fuel injection), and catalyst usage.
(5) Limited product line light truck means a light truck manufactured by a manufacturer whose light truck fleet is powered exclusively by basic engines which are not also used in passenger automobiles.
§ 533.5Requirements.
(a) Each manufacturer of light trucks shall comply with the following fleet average fuel economy standards, expressed in miles per gallon, in the model year (MY) specified as applicable:
Table 1 to § 533.5( a )
Model year
2-wheel drive light trucks
4-wheel drive light trucks
Limited product line light trucks
Captive imports
Other
Captive imports
Other
1979
17.2
15.8
1980
16.0
16.0
14.0
14.0
14.0
1981
16.7
16.7
15.0
15.0
14.5
Table 2 to § 533.5( a )
Model year
Combined standard
2-wheel drive light trucks
4-wheel drive light trucks
Captive imports
Others
Captive imports
Others
Captive imports
Others
1982
17.5
17.5
18.0
18.0
16.0
16.0
1983
19.0
19.0
19.5
19.5
17.5
17.5
1984
20.0
20.0
20.3
20.3
18.5
18.5
1985
19.5
19.5
19.7
19.7
18.9
18.9
1986
20.0
20.0
20.5
20.5
19.5
19.5
1987
20.5
20.5
21.0
21.0
19.5
19.5
1988
20.5
20.5
21.0
21.0
19.5
19.5
1989
20.5
20.5
21.5
21.5
19.0
19.0
1990
20.0
20.0
20.5
20.5
19.0
19.0
1991
20.2
20.2
20.7
20.7
19.1
19.1
Table 3 to § 533.5( a )
Model year
Combined standard
Captive imports
Other
1992
20.2
20.2
1993
20.4
20.4
1994
20.5
20.5
1995
20.6
20.6
Table 4 to § 533.5( a )
Model year
Standard
2001
20.7
2002
20.7
2003
20.7
2004
20.7
2005
21.0
2006
21.6
2007
22.2
2008
22.5
2009
23.1
2010
23.5
Where:
N is the total number (sum) of light trucks produced by a manufacturer;
N i is the number (sum) of the ith light truck model type produced by a manufacturer; and
T i is the fuel economy target of the ith light truck model type, which is determined according to the following formula, rounded to the nearest hundredth:
Where:
Parameters a, b, c, and d are defined in Table 5 to this paragraph (a);
e = 2.718; and
x = footprint (in square feet, rounded to the nearest tenth) of the model type.
Table 5 to § 533.5( a )—Parameters for the Light Truck Fuel Economy Targets for MYs 2008-2011
Model year
Parameters
a (mpg)
b (mpg)
c (gal/mi/ft 2 )
d (gal/mi)
2008
28.56
19.99
49.30
5.58
2009
30.07
20.87
48.00
5.81
2010
29.96
21.20
48.49
5.50
2011
27.10
21.10
56.41
4.28
Where:
CAFE required is the fleet average fuel economy standard for a given light truck fleet;
Subscript i is a designation of multiple groups of light trucks, where each group's designation, i.e., i = 1, 2, 3, etc., represents light trucks that share a unique model type and footprint within the applicable fleet;
Production i is the number of light trucks produced for sale in the United States within each ith designation, i.e., which share the same model type and footprint; and
TARGET i is the fuel economy target in miles per gallon (mpg) applicable to the footprint of light trucks within each ith designation, i.e., which share the same model type and footprint, calculated according to either Figure 3 or 4 to this paragraph (a), as appropriate, 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 6 to this paragraph (a); and
The MIN and MAX functions take the minimum and maximum, respectively, of the included values.
Table 6 to § 533.5( a )—Parameters for the Light Truck Fuel Economy Targets for MYs 2012-2016
Model year
Parameters
a (mpg)
b (mpg)
c (gal/mi/ft 2 )
d (gal/mi)
2012
29.82
22.27
0.0004546
0.014900
2013
30.67
22.74
0.0004546
0.013968
2014
31.38
23.13
0.0004546
0.013225
2015
32.72
23.85
0.0004546
0.011920
2016
34.42
24.74
0.0004546
0.010413
Where:
TARGET is the fuel economy target (in mpg) applicable to vehicles of a given footprint ( FOOTPRINT, in square feet);
Parameters a, b, c, d, e, f, g, and h are defined in Table 7 to this paragraph (a); and
The MIN and MAX functions take the minimum and maximum, respectively, of the included values.
Table 7 to Paragraph ( a )-Parameters for the Light Truck Fuel Economy Targets for MYs 2017-2031
Model year
Parameters
a (mpg)
b (mpg)
c (gal/mi/ft2)
d (gal/mi)
e (mpg)
f (mpg)
g (gal/mi/ft2)
h (gal/mi)
2017
36.26
25.09
0.0005484
0.005097
35.10
25.09
0.0004546
0.009851
2018
37.36
25.20
0.0005358
0.004797
35.31
25.20
0.0004546
0.009682
2019
38.16
25.25
0.0005265
0.004623
35.41
25.25
0.0004546
0.009603
2020
39.11
25.25
0.0005140
0.004494
35.41
25.25
0.0004546
0.009603
2021
39.71
25.63
0.000506
0.00443
NA
NA
NA
NA
2022
40.31
26.02
0.000499
0.00436
NA
NA
NA
NA
2023
40.93
26.42
0.000491
0.00429
NA
NA
NA
NA
2024
44.48
26.74
0.000452
0.00395
NA
NA
NA
NA
2025
48.35
29.07
0.000416
0.00364
NA
NA
NA
NA
2026
53.73
32.30
0.000374
0.00327
NA
NA
NA
NA
2027
53.73
32.30
0.00037418
0.00327158
NA
NA
NA
NA
2028
53.73
32.30
0.00037418
0.00327158
NA
NA
NA
NA
2029
54.82
32.96
0.00036670
0.00320615
NA
NA
NA
NA
2030
55.94
33.63
0.00035936
0.00314202
NA
NA
NA
NA
2031
57.08
34.32
0.00035218
0.00307918
NA
NA
NA
NA
(b)(1) For model year 1979, each manufacturer may:
(i) Combine its 2- and 4-wheel drive light trucks and comply with the average fuel economy standard in paragraph (a) of this section for 2-wheel drive light trucks; or
(ii) Comply separately with the two standards specified in paragraph (a) of this section.
(2) For model year 1979, the standard specified in paragraph (a) of this section for 4-wheel drive light trucks applies only to 4-wheel drive general utility vehicles. All other 4-wheel drive light trucks in that model year shall be included in the 2-wheel drive category for compliance purposes.
(c) For model years 1980 and 1981, manufacturers of limited product line light trucks may:
(1) Comply with the separate standard for limited product line light trucks in Table 1 to paragraph (a) of this section; or
(2) Comply with the other standards specified in paragraph (a) of this section, as applicable.
(d) For model years 1982-91, each manufacturer may:
(1) Combine its 2- and 4-wheel drive light trucks (segregating captive import and other light trucks) and comply with the combined average fuel economy standard specified in paragraph (a) of this section; or
(2) Comply separately with the 2-wheel drive standards and the 4-wheel drive standards (segregating captive import and other light trucks) specified in paragraph (a) of this section.
(e) For model year 1992, each manufacturer shall comply with the average fuel economy standard specified in paragraph (a) of this section (segregating captive import and other light trucks).
(f) For each model year 1996 and thereafter, each manufacturer shall combine its captive imports with its other light trucks and comply with the fleet average fuel economy standard in paragraph (a) of this section.
(g) For model years 2008-2010, at a manufacturer's option, a manufacturer's light truck fleet may comply with the fuel economy standard calculated for each model year according to Figure 1 to paragraph (a) of this section and the appropriate values in Table 5 to paragraph (a) of this section, with said option being irrevocably chosen for that model year and reported as specified in § 537.8 of this chapter.
(h) For model year 2011, a manufacturer's light truck fleet shall comply with the fleet average fuel economy standard calculated for that model year according to Figure 1 to paragraph (a) of this section and the appropriate values in Table 5 to paragraph (a) of this section.
(i) For model years 2012-2016, a manufacturer's light truck fleet shall comply with the fleet average fuel economy standard calculated for that model year according to Figures 2 and 3 to paragraph (a) of this section and the appropriate values in Table 6 to paragraph (a) of this section.
(j) For model years 2017-2031, a manufacturer's light truck fleet shall comply with the fleet average fuel economy standard calculated for that model year according to figures 2 and 4 to paragraph (a) of this section and the appropriate values in table 7 to paragraph (a) of this section.
§ 533.6Measurement and calculation procedures.
(a) Any reference to a class of light trucks manufactured by a manufacturer shall be deemed—
(1) To include all light trucks in that class manufactured by persons who control, are controlled by, or are under common control with, such manufacturer;
(2) To include only light trucks which qualify as non-passenger vehicles in accordance with § 523.5 of this chapter based upon the production measurements of the vehicles as sold to dealerships; and
(3) To exclude all light trucks in that class manufactured (within the meaning of paragraph (a)(1) of this section) during a model year by such manufacturer which are exported prior to the expiration of 30 days following the end of such model year.
(b) The fleet average fuel economy performance of all light trucks that are manufactured by a manufacturer in a model year shall be determined in accordance with procedures established by the Administrator of the Environmental Protection Agency (EPA) under 49 U.S.C. 32904 and set forth in 40 CFR part 600.
(c) For model years 2017 through 2031, a manufacturer is eligible to increase the fuel economy performance of light trucks in accordance with procedures established by the Environmental Protection Agency (EPA) set forth in 40 CFR part 600, subpart F, including adjustments to fuel economy for fuel consumption improvements related to air conditioning (AC) efficiency, off-cycle technologies, and hybridization and other performance-based technologies for full-size pickup trucks that meet the requirements specified in 40 CFR 86.1803. Starting in model year 2027, fuel economy increases for fuel consumption improvement values under 40 CFR 86.1868-12 and 40 CFR 86.1869-12 only apply for vehicles propelled by internal combustion engines. Manufacturers must provide reporting on these technologies as specified in § 537.7 of this chapter by the required deadlines.
(1) Efficient AC technologies. A manufacturer may seek to increase its fleet average fuel economy performance through the use of technologies that improve the efficiency of AC systems pursuant to the requirements in 40 CFR 86.1868-12. Fuel consumption improvement values resulting from the use of those AC systems must be determined in accordance with 40 CFR 600.510-12(c)(3)(i).
(2) Incentives for advanced full-size light-duty pickup trucks. For model year 2023 and 2024, the eligibility of a manufacturer to increase its fuel economy using hybridized and other performance-based technologies for full-size pickup trucks must follow 40 CFR 86.1870-12 and the fuel consumption improvement of these full-size pickup truck technologies must be determined in accordance with 40 CFR 600.510-12(c)(3)(iii). Manufacturers may also combine incentives for full size pickups and dedicated alternative fueled vehicles when calculating fuel economy performance values in 40 CFR 600.510-12.
(3) Off-cycle technologies on EPA's predefined list. A manufacturer may seek to increase its fleet average fuel economy performance through the use of off-cycle technologies pursuant to the requirements in 40 CFR 86.1869-12 for predefined off-cycle technologies in accordance with 40 CFR 86.1869-12(b). The fuel consumption improvement is determined in accordance with 40 CFR 600.510-12(c)(3)(ii).
(4) Off-cycle technologies using 5-cycle testing. Through model year 2026, a manufacturer may only increase its fleet average fuel economy performance through the use of off-cycle technologies tested using the EPA's 5-cycle methodology in accordance with 40 CFR 86.1869-12(c). The fuel consumption improvement is determined in accordance with 40 CFR 600.510-12(c)(3)(ii).
(5) Off-cycle technologies using the alternative EPA-approved methodology. Through model year 2026, a manufacturer may seek to increase its fuel economy performance through the use of an off-cycle technology requiring an application request made to the EPA in accordance with 40 CFR 86.1869-12(d).
(i) Eligibility under the Corporate Average Fuel Economy (CAFE) program requires compliance with paragraphs (c)(5)(i)(A) through (C) of this section. Paragraphs (c)(5)(i)(A), (B) and (D) of this section apply starting in model year 2024. Paragraph (b)(5)(i)(E) of this section applies starting in model year 2025.
(A) A manufacturer seeking to increase its fuel economy performance using the alternative methodology for an off-cycle technology, should submit a detailed analytical plan to EPA prior to the applicable model year. The detailed analytical plan may include information such as, planned test procedure and model types for demonstration. The plan will be approved or denied in accordance with 40 CFR 86.1869-12(d).
(B) A manufacturer seeking to increase its fuel economy performance using the alternative methodology for an off-cycle technology must submit an official credit application to EPA and obtain approval in accordance with 40 CFR 86.1869-12(e) prior to September of the given model year.
(C) A manufacturer's plans, applications and requests approved by the EPA must be made in consultation with NHTSA. To expedite NHTSA's consultation with the EPA, a manufacturer must concurrently submit its application to NHTSA if the manufacturer is seeking off-cycle fuel economy improvement values under the CAFE program for those technologies. For off-cycle technologies that are covered under 40 CFR 86.1869-12(d), NHTSA will consult with the EPA regarding NHTSA's evaluation of the specific off-cycle technology to ensure its impact on fuel economy and the suitability of using the off-cycle technology to adjust the fuel economy performance.
(D) A manufacturer may request an extension from NHTSA for more time to obtain an EPA approval. Manufacturers should submit their requests 30 days before the deadlines above. Requests should be submitted to NHTSA's Director of the Office of Vehicle Safety Compliance at [email protected] .
(E) For MYs 2025 and 2026, a manufacturer must respond within 60-days to any requests from EPA or NHTSA for additional information or clarifications to submissions provided pursuant to paragraphs (b)(4)(i)(A) and (B) of this section. Failure to respond within 60 days may result in denial of the manufacturer's request to increase its fuel economy performance through use of an off-cycle technology requests made to the EPA in accordance with 40 CFR 86.1869-12(d).
(ii) Review and approval process. NHTSA will provide its views on the suitability of the technology for that purpose to the EPA. NHTSA's evaluation and review will consider:
(A) Whether the technology has a direct impact upon improving fuel economy performance;
(B) Whether the technology is related to crash-avoidance technologies, safety critical systems or systems affecting safety-critical functions, or technologies designed for the purpose of reducing the frequency of vehicle crashes;
(C) Information from any assessments conducted by the EPA related to the application, the technology and/or related technologies; and
(D) Any other relevant factors.
(E) NHTSA will collaborate to host annual meetings with EPA at least once by July 30th before the model year begins to provide general guidance to the industry on past off-cycle approvals.
(iii) Safety. (A) Technologies found to be defective or non-compliant, subject to recall pursuant to part 573 of this chapter, Defect and Noncompliance Responsibility and Reports, due to a risk to motor vehicle safety, will have the values of approved off-cycle credits removed from the manufacturer's credit balance or adjusted to the population of vehicles the manufacturer remedies as required by 49 U.S.C. chapter 301. NHTSA will consult with the manufacturer to determine the amount of the adjustment.
(B) Approval granted for innovative and off-cycle technology credits under NHTSA's fuel efficiency program does not affect or relieve the obligation to comply with the Vehicle Safety Act (49 U.S.C. chapter 301), including the “make inoperative” prohibition (49 U.S.C. 30122), and all applicable Federal motor vehicle safety standards issued thereunder (FMVSSs) (part 571 of this chapter). In order to generate off-cycle or innovative technology credits manufacturers must state—
( 1 ) That each vehicle equipped with the technology for which they are seeking credits will comply with all applicable FMVSS(s); and
( 2 ) Whether or not the technology has a fail-safe provision. If no fail-safe provision exists, the manufacturer must explain why not and whether a failure of the innovative technology would affect the safety of the vehicle.
Appendix AAppendix A to Part 533—Example of Calculating Compliance Under § 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
Description
Actual measured fuel economy (mpg)
Volume
Group
Carline name
Basic engine (L)
Transmission class
1
Pickup A 2WD
4
A5
Reg cab, MB
27.1
800
2
Pickup B 2WD
4
M5
Reg cab, MB
27.6
200
3
Pickup C 2WD
4.5
A5
Reg cab, LB
23.9
300
4
Pickup C 2WD
4
M5
Ext cab, MB
23.7
400
5
Pickup C 4WD
4.5
A5
Crew cab, SB
23.5
400
6
Pickup D 2WD
4.5
A6
Crew cab, SB
23.6
400
7
Pickup E 2WD
5
A6
Ext cab, LB
22.7
500
8
Pickup E 2WD
5
A6
Crew cab, MB
22.5
500
9
Pickup F 2WD
4.5
A5
Reg cab, LB
22.5
1,600
10
Pickup F 4WD
4.5
A5
Ext cab, MB
22.3
800
11
Pickup F 4WD
4.5
A5
Crew cab, SB
22.2
800
Total
6,700
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 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
Pickup A 2WD
4
A5
Reg cab, MB
235/75R15
100.0
68.8
47.8
800
27.30
2
Pickup B 2WD
4
M5
Reg cab, MB
235/75R15
100.0
68.2
47.4
200
27.44
3
Pickup C 2WD
4.5
A5
Reg cab, LB
255/70R17
125.0
68.8
59.7
300
23.79
4
Pickup C 2WD
4
M5
Ext cab, MB
255/70R17
125.0
68.8
59.7
400
23.79
5
Pickup C 4WD
4.5
A5
Crew cab, SB
275/70R17
150.0
69.0
71.9
400
22.27
6
Pickup D 2WD
4.5
A6
Crew cab, SB
255/70R17
125.0
68.8
59.7
400
23.79
7
Pickup E 2WD
5
A6
Ext cab, LB
255/70R17
125.0
68.8
59.7
500
23.79
8
Pickup E 2WD
5
A6
Crew cab, MB
285/70R17
125.0
69.2
60.1
500
23.68
9
Pickup F 2WD
4.5
A5
Reg cab, LB
255/70R17
125.0
68.9
59.8
1,600
23.76
10
Pickup F 4WD
4.5
A5
Ext cab, MB
275/70R17
150.0
69.0
71.9
800
22.27
11
Pickup F 4WD
4.5
A5
Crew cab, SB
285/70R17
150.0
69.2
72.1
800
22.27
Total
6,700
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:
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).
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Cite this law
LIGHT TRUCK FUEL ECONOMY STANDARDS (U.S.C.). Retrieved via LawPlayer, https://lawplayer.com/us/act/cfr-title-49-part-533
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