49 C.F.R. § 533.5 Requirements.
Title 49 - Transportation
(a) Each manufacturer of light trucks shall comply with the following average fuel economy standards, expressed in miles per gallon, in the model year specified as applicable: Where: N is the total number (sum) of light trucks produced by a manufacturer, Ni is the number (sum) of the ith light truck model type produced by the manufacturer, and Ti is 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 §533.3 Table V; e = 2.718; and x = footprint (in square feet, rounded to the nearest tenth) of the model type (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, or (2) Comply with the other standards specified in §533.5(a), as applicable. (d) For model years 1982–91, each manufacture 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 model year 1996 and thereafter, each manufacturer shall combine its captive imports with its other light trucks and comply with the 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 level calculated according to Figure I and the appropriate values in Table V, with said option being irrevocably chosen for that model year and reported as specified in §537.8. (h) For model year 2011, a manufacturer's light truck fleet shall comply with the fuel economy level, calculated according to Figure I and the appropriate values in Table V. [43 FR 12014, Mar. 23, 1978, as amended at 45 FR 20878, Mar. 31, 1980; 47 FR 7250, Feb. 18, 1982; 47 FR 32721, July 29, 1982; 53 FR 11090, Apr. 5, 1988; 55 FR 12497, Apr. 4, 1990; 56 FR 13784, Apr. 4, 1991; 58 FR 18029, Apr. 7, 1993; 59 FR 16323, Apr. 6, 1994; 61 FR 14682, Apr. 3, 1996; 62 FR 15860, Apr. 3, 1997; 63 FR 16701, Apr. 6, 1998; 64 FR 16862, Apr. 7, 1999; 65 FR 17778, Apr. 5, 2000; 66 FR 17516, Apr. 2, 2001; 67 FR 16060, Apr. 4, 2002; 68 FR 16899, Apr. 7, 2003; 71 FR 17676, Apr. 6, 2006; 71 FR 19450, Apr. 14, 2006]
Title 49: Transportation
PART 533—LIGHT TRUCK FUEL ECONOMY STANDARDS
§ 533.5 Requirements.
Table I---------------------------------------------------------------------------------------------------------------- 2-wheel drive 4-wheel drive Limited light trucks light trucks product Model year ------------------------------------ line Captive Captive light imports Other imports Other trucks----------------------------------------------------------------------------------------------------------------1979............................................................... ....... 17.2 ....... 15.8 .......1980............................................................... 16.0 16.0 14.0 14.0 14.01981............................................................... 16.7 16.7 15.0 15.0 14.5----------------------------------------------------------------------------------------------------------------
Table II---------------------------------------------------------------------------------------------------------------- Combined 2-wheel drive 4-wheel drive standard light trucks light trucks Model year -------------------------------------------------- Captive Captive Captive imports Others imports Others imports Others----------------------------------------------------------------------------------------------------------------1982......................................................... 17.5 17.5 18.0 18.0 16.0 16.01983......................................................... 19.0 19.0 19.5 19.5 17.5 17.51984......................................................... 20.0 20.0 20.3 20.3 18.5 18.51985......................................................... 19.5 19.5 19.7 19.7 18.9 18.91986......................................................... 20.0 20.0 20.5 20.5 19.5 19.51987......................................................... 20.5 20.5 21.0 21.0 19.5 19.51988......................................................... 20.5 20.5 21.0 21.0 19.5 19.51989......................................................... 20.5 20.5 21.5 21.5 19.0 19.01990......................................................... 20.0 20.0 20.5 20.5 19.0 19.01991......................................................... 20.2 20.2 20.7 20.7 19.1 19.1----------------------------------------------------------------------------------------------------------------
Table III------------------------------------------------------------------------ Combined standard ------------------- Model Year Captive imports Other------------------------------------------------------------------------1992................................................ 20.2 20.21993................................................ 20.4 20.41994................................................ 20.5 20.51995................................................ 20.6 20.6------------------------------------------------------------------------
Table IV------------------------------------------------------------------------ Model year Standard------------------------------------------------------------------------2001........................................................ 20.72002........................................................ 20.72003........................................................ 20.72004........................................................ 20.72005........................................................ 21.02006........................................................ 21.62007........................................................ 22.22008........................................................ 22.52009........................................................ 23.12010........................................................ 23.5------------------------------------------------------------------------
Table V._Parameters for the Reformed CAFE Fuel Economy Targets---------------------------------------------------------------------------------------------------------------- Parameters Model year --------------------------------------------------------------- a b c d----------------------------------------------------------------------------------------------------------------2008............................................ 28.56 19.99 49.30 5.582009............................................ 30.07 20.87 48.00 5.812010............................................ 29.96 21.20 48.49 5.502011............................................ 30.42 21.79 47.74 4.65----------------------------------------------------------------------------------------------------------------
