ยง 531.5
Fuel economy standards.
(a) Except as provided in paragraph (b) of this section, each manufacturer of passenger automobiles shall comply with the following standards in the model years specified:
Model year
Average fuel economy standard (miles per gallon)
1978
18.0
1979
19.0
1980
20.0
1981
22.0
1982
24.0
1983
26.0
1984
27.0
1985
27.5
1986
26.0
1987
26.0
1988
26.0
1989
26.5
1990 and thereafter
27.5
(b) The following manufacturers shall comply with the standards indicated below for the specified model years:
(1) Avanti Motor Corporation.
Average Fuel Economy Standard
Model year
Miles per gallon
1978
16.1
1979
14.5
1980
15.8
1981
18.2
1982
18.2
1983
16.9
1984
16.9
1985
16.9
(2) Rolls-Royce Motors, Inc.
Model year
Average fuel economy standard (miles per gallon)
1978
10.7
1979
10.8
1980
11.1
1981
10.7
1982
10.6
1983
9.9
1984
10.0
1985
10.0
1986
11.0
1987
11.2
1988
11.2
1989
11.2
1990
12.7
1991
12.7
1992
13.8
1993
13.8
1994
13.8
1995
14.6
1996
14.6
1997
15.1
1998
16.3
1999
16.3
(3) Checker Motors Corporation.
Average Fuel Economy Standard
Model year
Miles per gallon
1978
17.6
1979
16.5
1980
18.5
1981
18.3
1982
18.4
(4) Aston Martin Lagonda, Inc.
Average Fuel Economy Standard
Model year
Miles per gallon
1979
11.5
1980
12.1
1981
12.2
1982
12.2
1983
11.3
1984
11.3
1985
11.4
(5) Excalibur Automobile Corporation.
Average Fuel Economy Standard
Model year
Miles per gallon
1978
11.5
1979
11.5
1980
16.2
1981
17.9
1982
17.9
1983
16.6
1984
16.6
1985
16.6
(6) Lotus Cars Ltd.
Model year
Average fuel economy standard (miles per gallon)
1994
24.2
1995
23.3
(7) Officine Alfieri Maserati, S.p.A.
Average Fuel Economy Standard
Model year
Miles per gallon
1978
12.5
1979
12.5
1980
9.5
1984
17.9
1985
16.8
(8) Lamborghini of North America.
Average Fuel Economy Standard
Model year
Miles per gallon
1983
13.7
1984
13.7
(9) LondonCoach Co., Inc.
Average Fuel Economy Standard
Model year
Miles per gallon
1985
21.0
1986
21.0
1987
21.0
(10) Automobili Lamborghini S.p.A./Vector Aeromotive Corporation.
Model year
Average fuel economy standard (miles per gallon)
1995
12.8
1996
12.6
1997
12.5
(11) Dutcher Motors, Inc.
Model year
Average fuel economy standard (miles per gallon)
1986
16.0
1987
16.0
1988
16.0
1992
17.0
1993
17.0
1994
17.0
1995
17.0
(12) MedNet, Inc.
Model year
Average fuel economy standard (miles per gallon)
1996
17.0
1997
17.0
1998
17.0
(13) Vector Aeromotive Corporation.
Model year
Average fuel economy standard (miles per gallon)
1998
12.1
(14) Qvale Automotive Group Srl.
Model year
Average fuel economy standard (miles per gallon)
2000
22.0
2001
22.0
[43 FR 28204, June 29, 1978, as amended at 46 FR 18721, Mar. 26, 1981; 47 FR 55685, Dec. 13, 1982; 51 FR 35620, Oct. 6, 1986; 53 FR 39302, Oct. 6, 1988; 55 FR 12486, Apr. 4, 1990; 55 FR 34018, Aug. 21, 1990; 56 FR 37479, Aug. 7, 1991; 60 FR 47878, Sept. 15, 1995; 61 FR 4370, Feb. 6, 1996; 61 FR 67492, Dec. 23, 1996; 62 FR 17101, Apr. 9, 1997; 62 FR 37154, July 11, 1997; 64 FR 12092, Mar. 11, 1999; 65 FR 58484, Sept. 29, 2000]