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TIH/PIH (RSSM)


TSA Final Rule (PDF) The movement of rail security-sensitive materials (RSSM) through High Threat Urban Areas (HTUAs) is regulated by the TSA.

Read the letter sent to CSX-served customers in December 2008 (PDF)

TSA Rail Security Fact Sheet (PDF)

TSA Rail Security FAQs (PDF)

TSA Freight Rail Maps of High Threat Urban Areas (HTUAs)