A third pillar was to have been the Global Trade Exchange (GTX), a data acquisition program which was funded as part of the Homeland Security Budget for 2008 and 2009, but is delayed and remains under study.
The ICS is in pilot phases and is working to develop appropriate means to verify the safety of transport containers, using scanning technology including radiation portal monitors, non-intrusive imaging equipment, and optical character recognition systems.
These ports began by scanning all maritime containers destined for the United States for nuclear or other radiological materials.
Data from these systems is then provided to U.S. officials at U.S. Customs and Border Protection's National Targeting Center for analysis.
A second leg of the SFI came to light vis-a-vis the new Importer Security Filing (ISF) program, also known as "10+2,".