INS 1 : (1) Immigration and Naturalization Service (replaced among USCIS, CBP and ICE at DHS; See also: DMIATF and ASUFAC). (2) Incident of National Significance (See: IONS or CINS)
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}