(1) Satellite Positioning and Tracking. (2) Screening of Passengers by Observation Techniques. (3) Systeme Probatoire d'Observation de la Terre (French satellite system)
Federal Emergency Management Agency, U.S. Department of Homeland Security, Acronyms Abbreviations &Terms (A Capability Assurance Job Aid), FEMA P-524, Washington, DC, USA 2009. http://www.fema.gov/pdf/plan/prepare/faatlist07_09 .pdf, (D&E - Amer) {844}