I
IAIP - Information Analysis and Infrastructure Protection (Directorate of Information Analysis and Infrastructure Protection) (division within the Department of Homeland Security created in March 2003 to collect intelligence to identify and assess threats to the U.S., issue warnings, and take preventive action, in such areas as key resources and critical infrastructure)
ICC - Income Capital Certificate (Banking) - (investment instrument making regular dividend payments)
ICC - International Chamber of Commerce
ICC - Interstate Commerce Commission (federal agency created by the Interstate Commerce Act of 1887, to insure fair and reasonable rates from carriers and transportation service forms - regulatory activities of the ICC in the rail, truck, and bus industries were curtailed by legislation in the 1970s and 1980s - the ICC was abolished by the ICC Termination Act of 1995 and many of its duties were transferred to the Surface Transportation Board (STB))
ICE - Immigration and Customs Enforcement (Bureau of Immigration and Customs Enforcement) (agency within the Department of Homeland Security (DHS) with responsibility for the enforcement of immigration and customs laws)
ID - Interior Department - U.S. Department of the Interior (agency responsible for management of public lands, mining and minerals development, and national parks)
IG - Inspector General (official who reviews the actions of a federal agency)
IMF - International Monetary Fund (organization set up in 1944 with a focus on lowering trade barriers and stabilizing currencies)
INR - State Department's Bureau of Intelligence and Research (division of U.S. State Department which collects and analyzes intelligence in order to understand the political climate within countries and to protect embassy staff)
Interpol - Interpol Washington (U.S. National Central Bureau - agency within the U.S. Department of Justice (DOJ) which coordinates criminal enforcement activities between U.S. agencies and their international counterparts)
IRC - Internal Revenue Code (blanket term used to describe the complexity of statutes, rules, and regulations which make up U.S. federal tax law)
IRS - Internal Revenue Service (largest division of the U.S. Treasury Department with responsibility for determining, assessing, and collecting federal taxes)
ITA - International Trade Administration ()
ITC - International Trade Commission ()