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49 U.S.C. § 31147

Title 49 Chapter 311 Current through PL 119-73 Last updated: March 29, 2026 View on OLRC →
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§ 31147. Limitations on authority

  • (a) 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) 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.

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