{"data":{"id":"us/49-cfr-533.5","jurisdiction":"us","citation":"49 CFR 533.5","heading":"Requirements.","body":"(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:\nTable 1 to § 533.5(a)\nModel year 2-wheel drive light trucks 4-wheel drive light trucks Limited product line light trucks\nCaptive imports Other Captive imports Other\n1979 17.2 15.8\n1980 16.0 16.0 14.0 14.0 14.0\n1981 16.7 16.7 15.0 15.0 14.5\nTable 2 to § 533.5(a)\nModel year Combined standard 2-wheel drive light trucks 4-wheel drive light trucks\nCaptive imports Others Captive imports Others Captive imports Others\n1982 17.5 17.5 18.0 18.0 16.0 16.0\n1983 19.0 19.0 19.5 19.5 17.5 17.5\n1984 20.0 20.0 20.3 20.3 18.5 18.5\n1985 19.5 19.5 19.7 19.7 18.9 18.9\n1986 20.0 20.0 20.5 20.5 19.5 19.5\n1987 20.5 20.5 21.0 21.0 19.5 19.5\n1988 20.5 20.5 21.0 21.0 19.5 19.5\n1989 20.5 20.5 21.5 21.5 19.0 19.0\n1990 20.0 20.0 20.5 20.5 19.0 19.0\n1991 20.2 20.2 20.7 20.7 19.1 19.1\nTable 3 to § 533.5(a)\nModel year Combined standard\nCaptive imports Other\n1992 20.2 20.2\n1993 20.4 20.4\n1994 20.5 20.5\n1995 20.6 20.6\nTable 4 to § 533.5(a)\nModel year Standard\n2001 20.7\n2002 20.7\n2003 20.7\n2004 20.7\n2005 21.0\n2006 21.6\n2007 22.2\n2008 22.5\n2009 23.1\n2010 23.5\nWhere:\nN is the total number (sum) of light trucks produced by a manufacturer;\nNi is the number (sum) of the ith light truck model type produced by a manufacturer; and\nTi 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:\nWhere:\nParameters a, b, c, and d are defined in Table 5 to this paragraph (a);\ne = 2.718; and\nx = footprint (in square feet, rounded to the nearest tenth) of the model type.\nTable 5 to § 533.5(a)—Parameters for the Light Truck Fuel Economy Targets for MYs 2008-2011\nModel year Parameters\na (mpg) b (mpg) c (gal/mi/ft2) d (gal/mi)\n2008 28.56 19.99 49.30 5.58\n2009 30.07 20.87 48.00 5.81\n2010 29.96 21.20 48.49 5.50\n2011 27.10 21.10 56.41 4.28\nWhere:\nCAFErequired is the fleet average fuel economy standard for a given light truck fleet;\nSubscript 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;\nProductioni 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\nTARGETi 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.\nWhere:\nTARGET is the fuel economy target (in mpg) applicable to vehicles of a given footprint (FOOTPRINT, in square feet);\nParameters a, b, c, and d are defined in Table 6 to this paragraph (a); and\nThe MIN and MAX functions take the minimum and maximum, respectively, of the included values.\nTable 6 to § 533.5(a)—Parameters for the Light Truck Fuel Economy Targets for MYs 2012-2016\nModel year Parameters\na (mpg) b (mpg) c (gal/mi/ft2) d (gal/mi)\n2012 29.82 22.27 0.0004546 0.014900\n2013 30.67 22.74 0.0004546 0.013968\n2014 31.38 23.13 0.0004546 0.013225\n2015 32.72 23.85 0.0004546 0.011920\n2016 34.42 24.74 0.0004546 0.010413\nWhere:\nTARGET is the fuel economy target (in mpg) applicable to vehicles of a given footprint (FOOTPRINT, in square feet);\nParameters a, b, c, d, e, f, g, and h are defined in Table 7 to this paragraph (a); and\nThe MIN and MAX functions take the minimum and maximum, respectively, of the included values.\nTable 7 to Paragraph (a)-Parameters for the Light Truck Fuel Economy Targets for MYs 2017-2031\nModel year Parameters\na (mpg) b (mpg) c (gal/mi/ft2) d (gal/mi) e (mpg) f (mpg) g (gal/mi/ft2) h (gal/mi)\n2017 36.26 25.09 0.0005484 0.005097 35.10 25.09 0.0004546 0.009851\n2018 37.36 25.20 0.0005358 0.004797 35.31 25.20 0.0004546 0.009682\n2019 38.16 25.25 0.0005265 0.004623 35.41 25.25 0.0004546 0.009603\n2020 39.11 25.25 0.0005140 0.004494 35.41 25.25 0.0004546 0.009603\n2021 39.71 25.63 0.000506 0.00443 NA NA NA NA\n2022 40.31 26.02 0.000499 0.00436 NA NA NA NA\n2023 40.93 26.42 0.000491 0.00429 NA NA NA NA\n2024 44.48 26.74 0.000452 0.00395 NA NA NA NA\n2025 48.35 29.07 0.000416 0.00364 NA NA NA NA\n2026 53.73 32.30 0.000374 0.00327 NA NA NA NA\n2027 53.73 32.30 0.00037418 0.00327158 NA NA NA NA\n2028 53.73 32.30 0.00037418 0.00327158 NA NA NA NA\n2029 54.82 32.96 0.00036670 0.00320615 NA NA NA NA\n2030 55.94 33.63 0.00035936 0.00314202 NA NA NA NA\n2031 57.08 34.32 0.00035218 0.00307918 NA NA NA NA\n(b)(1) For model year 1979, each manufacturer may:\n(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\n(ii) Comply separately with the two standards specified in paragraph (a) of this section.\n(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.\n(c) For model years 1980 and 1981, manufacturers of limited product line light trucks may:\n(1) Comply with the separate standard for limited product line light trucks in Table 1 to paragraph (a) of this section; or\n(2) Comply with the other standards specified in paragraph (a) of this section, as applicable.\n(d) For model years 1982-91, each manufacturer may:\n(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\n(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.\n(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).\n(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.\n(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.\n(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.\n(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.\n(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.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER V—NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 533—LIGHT TRUCK FUEL ECONOMY STANDARDS"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"6b4f25edac6061cf6f4a0b8525a07a45ef3defc4240e9adf8ef187a5db5a2568","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-533.4","next":"us/49-cfr-533.6"},"notice":"GroundRules: Original legal text. Not legal advice."}