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OCR for page 73
73 ACRONYMS AND ABBREVIATIONS ATU Amalgamated Transit Union AVL Automated vehicle location CAD Computer-aided dispatch CCTV Closed-circuit television CFR Code of Federal Regulations COMPSTAT COMParative STATistics CUTA Canadian Urban Transit Association DHS U.S. Department of Homeland Security DOT U.S. Department of Transportation GPS Global Positioning System HSPD Homeland Security Presidential Directive NIMS National Incident Management System NPG National Preparedness Guidelines NRF National Response Framework NRP National Response Plan OMB Office of Management and Budget OSHA Occupational Safety and Health Administration SCADA Supervisory control and data acquisition SSI Sensitive security information TCL Target Capabilities List TODSS Transit Operations Decision Support System TSA Transportation Security Administration TVA Threat and vulnerability assessment TWU Transportation Workers Union Volpe Center Volpe National Transportation Systems Center