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Transportation Law

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Transportation law governs the movement of people and goods and the businesses and systems that make it possible. It is a regulatory-focused field that addresses how transportation operations are licensed, overseen, and held accountable.

This area covers a range of transportation modes, including road, rail, air, and water. Common topics include the licensing and regulation of carriers and operators, safety requirements, the rules that govern the shipment of goods, the responsibilities of those who transport cargo or passengers, and compliance with the agencies that oversee transportation. It can also touch disputes arising from transportation operations.

Key concepts a non-lawyer should understand include the heavily regulated nature of transportation, with agencies setting and enforcing safety and operational standards; the existence of specific rules governing the carriage of goods and the obligations of carriers; and the idea that operating in this field generally requires meeting licensing and compliance requirements. Because transportation often crosses jurisdictions, multiple sets of rules can apply.

This field is most relevant to carriers, operators, shippers, and other businesses involved in moving people or goods. They typically consult a lawyer experienced in transportation law to address licensing and regulatory compliance, respond to an agency action, or resolve a dispute connected to transportation operations.

Share of classified federal decisions

1945196019802000200714%0
share of classified federal decisions

Of the federal decisions we've classified by topic, the share each year that fall under this practice area — so a persistently high line means this is a large, enduring share of federal litigation. This is not a share of all litigation: only part of the corpus is topic-classified (unevenly across eras), and an opinion can belong to several areas, so areas need not sum to 100%. State cases are largely unclassified, so this is federal only. The dip in the last several years is a data-coverage gap — our corpus holds fewer opinions from the most recent years — not a real decline.

From the OpenJurist Bookshop

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Related practice areas

Administrative LawBonds and Government Finance LawCivil Rights LawConstitutional LawElection Campaign and Political LawEnvironmental LawFalse Claims Act LawGovernment Contract Law

Primary law

The governing U.S. Code, statutes and founding documents for Transportation Law.

Key definitions

Defined terms that recur in transportation law — each links to its dictionary entry.

Common CarrierCarrierNegligenceBill Of LadingRight Of WayTariffSubrogationStatute Of LimitationsRes Ipsa LoquiturContributory Negligence

Key cases of the U.S. Courts of Appeals and the Supreme Court of the United States

The most-cited decisions applying U.S. Code Title 49 (Transportation) — beyond the landmark cases above.

Transportation Law by state

Courts, law libraries and state-specific resources. State law governs much of this area, so deadlines and rules vary by state.

Further reading

  • Compilation of Selected United States Coast Guard and Maritime Transportation Laws Vol 5 - Paperback
    Compilation of Selected United States Coast Guard and Maritime Transportation Laws Vol 5 - Paperback
  • Airport Concessions Disadvantaged Business Enterprise - Program Improvements (US Department of Transportation Regulation) (DOT) (2018 Edition) - Paperback
    Airport Concessions Disadvantaged Business Enterprise - Program Improvements (US Department of Transportation Regulation) (DOT) (2018 Edition) - Paperback
    The Law Library
  • Medicaid Program - State Option to Establish Non-Emergency Medical Transportation Program (Us Centers for Medicare and Medicaid Services Regulation) ( - Paperback
    Medicaid Program - State Option to Establish Non-Emergency Medical Transportation Program (Us Centers for Medicare and Medicaid Services Regulation) ( - Paperback
    The Law Library
  • Compilation of Selected Railroad, Pipeline, and Hazardous Materials Transportation Laws Vol 2: Railroad Regulation - Paperback
    Compilation of Selected Railroad, Pipeline, and Hazardous Materials Transportation Laws Vol 2: Railroad Regulation - Paperback
  • Compilation of Selected Surface Transportation Laws Vol 2: Surface Transportation Authorizations (Part I) - Paperback
    Compilation of Selected Surface Transportation Laws Vol 2: Surface Transportation Authorizations (Part I) - Paperback
  • Hazardous Materials - Enhancing Rail Transportation Safety and Security for Hazardous Materials Shipments (US Pipeline and Hazardous Materials Safety - Paperback
    Hazardous Materials - Enhancing Rail Transportation Safety and Security for Hazardous Materials Shipments (US Pipeline and Hazardous Materials Safety - Paperback
    The Law Library
  • The Ocean Carrier: A History And Analysis Of The Service And A Discussion Of The Rates Of Ocean Transportation (1908) - Paperback
    The Ocean Carrier: A History And Analysis Of The Service And A Discussion Of The Rates Of Ocean Transportation (1908) - Paperback
    Joseph Russell Smith
  • Making Livable Places: Transportation, Preservation and the Limits of Growth - Paperback
    Making Livable Places: Transportation, Preservation and the Limits of Growth - Paperback
  • So You Got the Privacy Officer Title. Now What? - Paperback
    So You Got the Privacy Officer Title. Now What? - Paperback
    Teresa T. Troester-Falk
  • Compilation of Selected United States Coast Guard and Maritime Transportation Laws Vol 2 - Paperback
    Compilation of Selected United States Coast Guard and Maritime Transportation Laws Vol 2 - Paperback
  • Transportation Terms & Conditions: A Reference Dictionary with Forms 3rd Edition - Paperback
    Transportation Terms & Conditions: A Reference Dictionary with Forms 3rd Edition - Paperback
    Daniel W. Raab
  • Procedures for Handling of Retaliation Complaints Under Employee Protection Provision of Surface Transportation Assistance Act of 1982 (US Occupationa - Paperback
    Procedures for Handling of Retaliation Complaints Under Employee Protection Provision of Surface Transportation Assistance Act of 1982 (US Occupationa - Paperback
    The Law Library
  • Compilation of Selected Surface Transportation Laws Vol 6: 49 United States Code - Paperback
    Compilation of Selected Surface Transportation Laws Vol 6: 49 United States Code - Paperback
  • Covid-19 and Labor Markets in Southeast Asia: Impacts on Indonesia, Malaysia, the Philippines, Thailand, and Viet Nam - Paperback
    Covid-19 and Labor Markets in Southeast Asia: Impacts on Indonesia, Malaysia, the Philippines, Thailand, and Viet Nam - Paperback
    Asian Development Bank
  • Iimplementing MAP-21: progress report from U.S. Department of Transportation modal administrators - Paperback
    Iimplementing MAP-21: progress report from U.S. Department of Transportation modal administrators - Paperback
    United States House of Representatives
  • Compilation of Selected United States Coast Guard and Maritime Transportation Laws Vol 4 - Paperback
    Compilation of Selected United States Coast Guard and Maritime Transportation Laws Vol 4 - Paperback
  • Ethiopia at Constitutional Crossroads: In Search of a Fair and Durable Settlement - Paperback
    Ethiopia at Constitutional Crossroads: In Search of a Fair and Durable Settlement - Paperback
    Adeno Addis
  • Compilation of Selected Railroad, Pipeline, and Hazardous Materials Transportation Laws Vol 3: Railroad Laws Relating to Retirement, Unemployment, and - Paperback
    Compilation of Selected Railroad, Pipeline, and Hazardous Materials Transportation Laws Vol 3: Railroad Laws Relating to Retirement, Unemployment, and - Paperback
  • A Past That Lies Before Me: A University Professor's memoir/exposé of being arrested, entangled in the criminal justice system, loss, jail, and unexpe - Hardcover
    A Past That Lies Before Me: A University Professor's memoir/exposé of being arrested, entangled in the criminal justice system, loss, jail, and unexpe - Hardcover
    Steve Clark
  • Texas Transportation Code (1/2) (2018 Edition) - Paperback
    Texas Transportation Code (1/2) (2018 Edition) - Paperback
    The Law Library
  • Labour Law in Japan - Paperback
    Labour Law in Japan - Paperback
    Tadashi A. Hanami
  • The Art Of Railroading V6 Twentieth Century Machine Shop Practice: Or The Technique Of Modern Transportation (1906) - Paperback
    The Art Of Railroading V6 Twentieth Century Machine Shop Practice: Or The Technique Of Modern Transportation (1906) - Paperback
    L. Elliot Brookes
  • Compilation of Selected Railroad, Pipeline, and Hazardous Materials Transportation Laws Vol 4: Pipelines and Hazardous Materials - Paperback
    Compilation of Selected Railroad, Pipeline, and Hazardous Materials Transportation Laws Vol 4: Pipelines and Hazardous Materials - Paperback
  • Compilation of Selected Railroad, Pipeline, and Hazardous Materials Transportation Laws Vol 1: Railroad Regulation - Paperback
    Compilation of Selected Railroad, Pipeline, and Hazardous Materials Transportation Laws Vol 1: Railroad Regulation - Paperback

This overview is general legal information, not legal advice, and does not create an attorney–client relationship. Laws vary by state and change over time — consult a licensed attorney about your situation.