§ 533.5 Requirements.
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Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
(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:
(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.
aTable 1 to § 533.5()Model year2-wheel drive light trucks4-wheel drive light trucksLimited product line light trucks CaptiveimportsOtherCaptiveimportsOther 197917.215.8 19801616141414 198116.716.7151514.5
aTable 2 to § 533.5()Model yearCombined standard2-wheel drive light trucks4-wheel drive light trucks CaptiveimportsOthersCaptiveimportsOthersCaptiveimportsOthers 198217.517.518181616 1983191919.519.517.517.5 1984202020.320.318.518.5 198519.519.519.719.718.918.9 1986202020.520.519.519.5 198720.520.5212119.519.5 198820.520.5212119.519.5 198920.520.521.521.51919 1990202020.520.51919 199120.220.220.720.719.119.1
aTable 3 to § 533.5()Model yearCombined standard CaptiveimportsOther 199220.220.2 199320.420.4 199420.520.5 199520.620.6
aTable 4 to § 533.5()Model yearStandard 200120.7 200220.7 200320.7 200420.7 200521 200621.6 200722.2 200822.5 200923.1 201023.5
aTable 5 to § 533.5()—Parameters for the Light Truck Fuel Economy Targets for MYs 2008-2011Model yearParameters a(mpg)b(mpg)c2(gal/mi/ft)d(gal/mi) 200828.5619.9949.35.58 200930.0720.87485.81 201029.9621.248.495.5 201127.121.156.414.28
aTable 6 to § 533.5()—Parameters for the Light Truck Fuel Economy Targets for MYs 2012-2016Model yearParameters a(mpg)b(mpg)c2(gal/mi/ft)d(gal/mi) 201229.8222.270.00045460.0149 201330.6722.740.00045460.013968 201431.3823.130.00045460.013225 201532.7223.850.00045460.01192 201634.4224.740.00045460.010413
aTable 7 to Paragraph ()-Parameters for the Light Truck Fuel Economy Targets for MYs 2017-2031Model yearParameters a(mpg)b(mpg)c(gal/mi/ft2)d(gal/mi)e(mpg)f(mpg)g(gal/mi/ft2)h(gal/mi) 201736.2625.090.00054840.00509735.125.090.00045460.009851 201837.3625.20.00053580.00479735.3125.20.00045460.009682 201938.1625.250.00052650.00462335.4125.250.00045460.009603 202039.1125.250.0005140.00449435.4125.250.00045460.009603 202139.7125.630.0005060.00443NANANANA 202240.3126.020.0004990.00436NANANANA 202340.9326.420.0004910.00429NANANANA 202444.4826.740.0004520.00395NANANANA 202548.3529.070.0004160.00364NANANANA 202653.7332.30.0003740.00327NANANANA 202753.7332.30.000374180.00327158NANANANA 202853.7332.30.000374180.00327158NANANANA 202954.8232.960.00036670.00320615NANANANA 203055.9433.630.000359360.00314202NANANANA 203157.0834.320.000352180.00307918NANANANA
Where: N is the total number (sum) of light trucks produced by a manufacturer; Nithi is the number (sum) of the light truck model type produced by a manufacturer; and Tithi is the fuel economy target of the light truck model type, which is determined according to the following formula, rounded to the nearest hundredth:
Where: a, b, c,dParameters and 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.
Where: CAFErequired is the fleet average fuel economy standard for a given light truck fleet; ii.e.,Subscript is a designation of multiple groups of light trucks, where each group's designation, i = 1, 2, 3, etc., represents light trucks that share a unique model type and footprint within the applicable fleet; Productioni.e.,iith is the number of light trucks produced for sale in the United States within each designation, which share the same model type and footprint; and TARGETithi.e.,i.e.,i is the fuel economy target in miles per gallon (mpg) applicable to the footprint of light trucks within each designation, 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, 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: TARGETFOOTPRINT, is the fuel economy target (in mpg) applicable to vehicles of a given footprint ( in square feet); a, b, c,Parameters and d are defined in Table 6 to this paragraph (a); and MINMAXThe and functions take the minimum and maximum, respectively, of the included values.
Where: TARGETFOOTPRINT, is the fuel economy target (in mpg) applicable to vehicles of a given footprint ( in square feet); a, b, c, d, e, f, g,hParameters and are defined in Table 7 to this paragraph (a); and MINMAXThe and functions take the minimum and maximum, respectively, of the included values.
[87 FR 26076, May 2, 2022, as amended at 89 FR 52949, June 24, 2024]
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