---
kind: "section"
citation: "49 C.F.R. § 531.5"
title: "49"
number: "531.5"
heading: "Fuel economy standards."
url: "https://uscodex.org/cfr/49/531.5"
---

# §531.5. Fuel economy standards.

- (a) Except as provided in [paragraph (e)](#e) of this section, each manufacturer of passenger automobiles shall comply with the fleet average fuel economy standards in table 1 to this [paragraph (a)](#a), expressed in miles per gallon, in the model year specified as applicable:
- (b) Except as provided in [paragraph (e)](#e) of this section, for model year 2011, a manufacturer's passenger automobile fleet shall comply with the fleet average fuel economy level calculated for that model year according to figure 1 and the appropriate values in table 2 to this [paragraph (b)](#b).
- (c) Except as provided in [paragraph (e)](#e) of this section, for model years 2012-2031, a manufacturer's passenger automobile fleet shall comply with the fleet average fuel economy level calculated for that model year according to this figure 2 and the appropriate values in this table 3 to this [paragraph (c)](#c).
- (d) In addition to the requirements of paragraphs [(b)](#b) and [(c)](#c) of this section, each manufacturer, other than manufacturers subject to standards in [paragraph (e)](#e) of this section, shall also meet the minimum fleet standard for domestically manufactured passenger automobiles expressed in table 4 to this [paragraph (d)](#d):
- (e) The following manufacturers shall comply with the standards indicated in [paragraphs (e)(1) through (15)](#e-1..e-15) of this section for the specified model years:
  - (1) **Avanti Motor Corporation.**
  - (2) **Rolls-Royce Motors, Inc.**
  - (3) **Checker Motors Corporation.**
  - (4) **Aston Martin Lagonda Limited.**
  - (5) **Excalibur Automobile Corporation.**
  - (6) **Lotus Cars Ltd.**
  - (7) **Officine Alfieri Maserati, S.p.A.**
  - (8) **Lamborghini of North America.**
  - (9) **LondonCoach Co., Inc.**
  - (10) **Automobili Lamborghini S.p.A./Vector Aeromotive Corporation.**
  - (11) **Dutcher Motors, Inc.**
  - (12) **MedNet, Inc.**
  - (13) **Vector Aeromotive Corporation.**
  - (14) **Qvale Automotive Group Srl.**
  - (15) **Spyker Automobielen B.V.**
  - (16) **Ferrari.**
  - (17) **Koenigsegg.**
  - (18) **McLaren.**
  - (19) **Mobility Ventures.**
  - (20) **Pagani.**

## Notes

### Amendments

[87 FR 26070, May 2, 2022, as amended at 89 FR 12756, Feb. 20, 2024; 89 FR 52945, June 24, 2024; 89 FR 60833, July 29, 2024]

### Authority

Authority: 49 U.S.C. 32902, delegation of authority at 49 CFR 1.95.

### Source

Source: 87 FR 26070, May 2, 2022, unless otherwise noted.

### Amendments

[87 FR 26070, May 2, 2022, as amended at 89 FR 12756, Feb. 20, 2024; 89 FR 52945, June 24, 2024; 89 FR 60833, July 29, 2024]