49 USC 31147: Limitations on authority
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49 USC 31147: Limitations on authority Text contains those laws in effect on December 25, 2024
From Title 49-TRANSPORTATIONSUBTITLE VI-MOTOR VEHICLE AND DRIVER PROGRAMSPART B-COMMERCIALCHAPTER 311-COMMERCIAL MOTOR VEHICLE SAFETYSUBCHAPTER III-SAFETY REGULATION
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§31147. Limitations on authority

(a) Traffic Regulations.-This subchapter does not authorize the Secretary of Transportation to prescribe traffic safety regulations or preempt State traffic regulations. However, the Secretary may prescribe traffic regulations to the extent their subject matter was regulated under parts 390–399 of title 49, Code of Federal Regulations, on October 30, 1984.

(b) Regulating the Manufacturing of Vehicles.-This subchapter does not authorize the Secretary to regulate the manufacture of commercial motor vehicles for any purpose, including fuel economy, safety, or emission control.

( Pub. L. 103–272, §1(e), July 5, 1994, 108 Stat. 1013 .)

Historical and Revision Notes
Revised

Section

Source (U.S. Code)Source (Statutes at Large)
31147(a) 49 App.:2519(a). Oct. 30, 1984, Pub. L. 98–554, §229, 98 Stat. 2853 .
31147(b) 49 App.:2519(b).

In subsection (a), the word "prescribe" is substituted for "establish or maintain" for consistency in the revised title and with other titles of the United States Code.