Commercial Vehicle Security: Risk-Based Approach Needed to Secure the Commercial Vehicle Sector

摘要

Numerous incidents around the world have highlighted the vulnerability of commercial vehicles to terrorist acts. Commercial vehicles include over 1 million highly diverse truck and intercity bus firms. Within the Department of Homeland Security (DHS), the Transportation Security Administration (TSA) has primary federal responsibility for ensuring the security of the commercial vehicle sector, while vehicle operators are responsible for implementing security measures for their firms. GAO was asked to examine: (1) the extent to which TSA has assessed security risks for commercial vehicles; (2) actions taken by key stakeholders to mitigate identified risks; and (3) TSA efforts to coordinate its security strategy with other federal, state, and private sector stakeholders. GAO reviewed TSA plans, assessments, and other documents; visited a nonrandom sample of 26 commercial truck and bus companies of varying sizes, locations, and types of operations; and interviewed TSA and other federal and state officials and industry representatives. TSA has taken actions to evaluate the security risks associated with the commercial vehicle sector, including assessing threats and initiating vulnerability assessments, but more work remains to fully gauge security risks. Risk assessment uses a combined analysis of threat, vulnerability, and consequence to estimate the likelihood of terrorist attacks and the severity of their impact. TSA conducted threat assessments of the commercial vehicle sector and has also cosponsored a vulnerability assessment pilot program in Missouri. However, TSA's threat assessments generally have not identified the likelihood of specific threats, as required by DHS policy. TSA has also not determined the scope, method, and time frame for completing vulnerability assessments of the commercial vehicle sector. In addition, TSA has not conducted consequence assessments, or leveraged the consequence assessments of other sectors.