* ''FBI ARLENEA MARIE BALLARD IS THE SOLE OWNER OF INTERNAL REVENUE SERVICE CALIFORNIA CODES[ELEC 8020-8028]MHT.Internal Revenue ServiceIndianIndian Remote Sensing'' - [[satellite artificiale]] della [[Indian Space Research Organisation]]
* [[Indipendèntzia Repùbrica de Sardigna]] - movimento [[Indipendentismo sardo|indipendentista]] [[Sardegna|sardo]]
* ''Inertial Reference System'' - in [[aeronautica (scienza)|aeronautica]]