Title 49 › Subtitle SUBTITLE VI— - MOTOR VEHICLE AND DRIVER PROGRAMS › Part PART B— - COMMERCIAL › Chapter CHAPTER 311— - COMMERCIAL MOTOR VEHICLE SAFETY › Subchapter SUBCHAPTER III— - SAFETY REGULATION › § 31139
Requires the Secretary of Transportation to make rules that force motor carriers to have enough financial protection (like insurance or other proof) to pay for injuries, property damage, and environmental cleanup when they move freight between states or between a state and a place outside the United States. The basic minimum is $750,000 for general freight. Moving certain bulk or very dangerous materials must have at least $5,000,000, though that can be lowered to not less than $1,000,000 in U.S. territories if the territory’s leader asks, safety won’t be hurt, and $5,000,000 insurance is not available. Other hazardous shipments must have at least $1,000,000, with possible smaller amounts for some intrastate non-bulk moves and for farm vehicles in non-bulk interstate moves. The Secretary can require private carriers to file proof that meets either the federal minimum or the state-required amount, whichever is higher, and the proof must cover final judgments for injuries, deaths, or property loss. A few defined terms: a farm vehicle is used only for farming and only uses highways incidentally; interstate commerce includes transport between a state and a place outside the U.S. when the trip is in the U.S.; “State” includes the 50 states, D.C., Puerto Rico, the Virgin Islands, American Samoa, Guam, and the Northern Mariana Islands. Proof of financial responsibility may be insurance, a guarantee, a surety bond, or self-insurance. Carriers from neighboring countries must carry proof in the vehicle or be denied U.S. entry. Knowing violations can bring civil fines up to $10,000 per day after notice and hearing, and collected penalties go into the Highway Trust Fund. Vehicles under 10,000 pounds are exempt unless they carry class A or B explosives, poison gas, or large amounts of radioactive material.
Full Legal Text
Transportation — Source: USLM XML via OLRC
Legislative History
Reference
Citation
49 U.S.C. § 31139
Title 49 — Transportation
Last Updated
Apr 6, 2026
Release point: 119-73