DOT Security Part 1

TSA is providing these voluntary security practices as measures that should be considered for implementation by motor carriers transporting Tier 1 HSSM and Tier 2 HSSM. If the motor carrier adopts these security practices, TSA recommends that the practices be included in security plans when they are developed, implemented, and revised. The security practices are voluntary to allow highway motor carriers to adopt measures best suited to their particular circumstances provided the measures are consistent with existing regulations, laws, or directives.