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Official website of the Department of Homeland Security

Highway Motor Carrier Branch

Office of Security Policy and Industry Engagement


With more than four million miles of roadway in the United States, nine million large capacity commercial trucks as defined by the U.S. Department of Transportation, almost 4,000 commercial bus companies and more than 600,000 highway bridges, nearly every city in the Nation is accessible by motor vehicle.  The highway and byway system is a lifeline US citizens depend on routinely to conduct daily activities and for moving all types of goods and services via over the road vehicles to their final destinations.   America’s most basic and most critical goods are distributed and delivered by roadway.

The Office of Security Policy and Industry Engagement (OSPIE), Surface Division, Highway and Motor Carrier (HMC) mode programs rely heavily on the identification of risks to critical systems and services, and the implementation of risk-mitigating policies and programs to address gaps that may exist.  Those programs range from detailed assessments of critical bridges (identifying “keystone vulnerabilities” that could be exploited) to security awareness training for truck, motorcoach, and school bus drivers who are the first line in their own defense.

Vision and Mission

The vision of the highway and motor carrier mode is a secure and resilient transportation system, enabling legitimate travelers and goods to move without significant disruption of commerce, undue fear of harm, or loss of civil liberties.

The mission of the highway and motor carrier mode is to continuously improve the risk posture of highway transportation systems serving the Nation.

Latest revision: 19 August 2014