; (2) promote more consistent and timely sharing of threat information among jurisdictions; and (3) enhance the Department of Homeland Security’s situational awareness of such terrorist and other threats. (c) Clearances The Secretary of Homeland Security shall make available to appropriate owners and operators of surface transportation assets, and any other person that the Secretary determines appropriate to foster greater sharing of classified information relating to terrorist and other threats to surface transportation assets, the process of application for security clearances under Executive Order 13549 (75 Fed. Reg. 162