Title 49 › SUBTITLE IV — INTERSTATE TRANSPORTATION › PART B — MOTOR CARRIERS, WATER CARRIERS, BROKERS, AND FREIGHT FORWARDERS › CHAPTER 145 — FEDERAL-STATE RELATIONS › § 14506
States and local governments may not make motor carriers, private carriers, freight forwarders, or leasing companies put extra ID on or inside a commercial motor vehicle, except for the ID the U.S. Secretary of Transportation requires under 49 C.F.R. 390.21. A State can still require certain credentials: those under the International Registration Plan (section 31704); those under the International Fuel Tax Agreement (section 31705) or a State highway‑use tax form if, on October 1, 2006, the State used a form not collected through IFTA; State license plates or displays the Secretary approves; rules for hazardous materials (section 5103); and federal vehicle inspection rules (section 31136).
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Legislative History
Reference
Citation
49 U.S.C. § 14506
Title 49, Transportation
Last Updated
Sep 22, 2026
Release point: 119-110