Title 49TransportationRelease 119-73

§32918 Retrofit devices

Title 49 › Subtitle SUBTITLE VI— - MOTOR VEHICLE AND DRIVER PROGRAMS › Part PART C— - INFORMATION, STANDARDS, AND REQUIREMENTS › Chapter CHAPTER 329— - AUTOMOBILE FUEL ECONOMY › § 32918

Last updated Apr 6, 2026|Official source

Summary

Requires the Federal Trade Commission to run a program that checks claims made about add‑on car parts that say they will improve fuel economy. If the FTC thinks a claim might be wrong, it asks the testing official to evaluate the device. The testing official must test devices when a maker asks, when the FTC asks, or on the official’s own motion. Makers must give samples and pay testing costs. Tests will check fuel economy and pollution effects, and results must be published publicly and sent to the Transportation Department and the FTC. The testing official must also make rules for how tests are done and how to judge claim accuracy. Retrofit device — an added, replaced, or altered car part that a seller says will increase fuel economy.

Full Legal Text

Title 49, §32918

Transportation — Source: USLM XML via OLRC

(a)In this section, the term “retrofit device” means any component, equipment, or other device—
(1)that is designed to be installed in or on an automobile (as an addition to, as a replacement for, or through alteration or modification of, any original component, equipment, or other device); and
(2)that any manufacturer, dealer, or distributor of the device represents will provide higher fuel economy than would have resulted with the automobile as originally equipped,
(b)The Federal Trade Commission shall establish a program for systematically examining fuel economy representations made with respect to retrofit devices. Whenever the Commission has reason to believe that any representation may be inaccurate, the Commission shall request the Administrator to evaluate, in accordance with subsection (c) of this section, the retrofit device with respect to which the representation was made.
(c)(1)On application of any manufacturer of a retrofit device (or prototype of a retrofit device), on request of the Commission under subsection (b) of this section, or on the motion of the Administrator, the Administrator shall evaluate, in accordance with regulations prescribed under subsection (e) of this section, any retrofit device to determine whether the retrofit device increases fuel economy and to determine whether the representations, if any, made with respect to the retrofit device are accurate.
(2)If under paragraph (1) of this subsection, the Administrator tests, or causes to be tested, any retrofit device on the application of a manufacturer of the device, the manufacturer shall supply, at the manufacturer’s expense, one or more samples of the device to the Administrator and shall be liable for the costs of testing incurred by the Administrator. The procedures for testing retrofit devices so supplied may include a requirement for preliminary testing by a qualified independent testing laboratory, at the expense of the manufacturer of the device.
(d)(1)The Administrator shall publish in the Federal Register a summary of the results of all tests conducted under this section, together with the Administrator’s conclusions as to—
(A)the effect of any retrofit device on fuel economy;
(B)the effect of the device on emissions of air pollutants; and
(C)any other information the Administrator determines to be relevant in evaluating the device.
(2)The summary and conclusions shall also be submitted to the Secretary of Transportation and the Commission.
(e)The Administrator shall prescribe regulations establishing—
(1)testing and other procedures for evaluating the extent to which retrofit devices affect fuel economy and emissions of air pollutants; and
(2)criteria for evaluating the accuracy of fuel economy representations made with respect to retrofit devices.

Legislative History

Notes & Related Subsidiaries

Historical and Revision Notes

Revised SectionSource (U.S. Code)Source (Statutes at Large) 3291815:2011.Oct. 20, 1972, Pub. L. 92–513, § 511, as added Dec. 22, 1975, Pub. L. 94–163, § 301, 89 Stat. 915, and amended July 5, 1994, Pub. L. 103–272, § 4(c), 108 Stat. 1361. This restates 15:2011 to include 15:2011 in the scope of the codification enacted by section 1 of the Act of July 5, 1994 (Public Law 103–272, 108 Stat. 745). In subsection (a), the words “Administrator of the Environmental Protection Agency” are substituted for “Administrator” for clarity and to conform to the style of the codification which is to state the complete title the first time a descriptive title is used, and thereafter, to use a shorter title unless the context requires the complete title to be used. In subsections (c) and (e), the word “

Regulations

” is substituted for “rules” and “by rule” for consistency with the restatement of title 49. In subsection (e)(1), the words “The Administrator shall prescribe

Regulations

establishing” are substituted for “Within 180 days after December 22, 1975, the Administrator shall, by rule, establish” to eliminate executed words.

Editorial Notes

Prior Provisions

A prior section 32918 was renumbered section 32919 of this title.

Reference

Citations & Metadata

Citation

49 U.S.C. § 32918

Title 49Transportation

Last Updated

Apr 6, 2026

Release point: 119-73