Three sets of documents are to be exchanged between the two sides detailing Indian assurances and US commitment to give access to dual-use technology. The complex agreement is a "set of mutual obligations", say officials. India has wanted greater access to US technology but Washington has been reluctant because of concerns about the technology leaking either to third parties or being used in the weapons programmes. US law requires that sales of licensed high-tech items be occasionally followed by on-site inspections to ensure the technology is being used for the purposes it was sold. The US requirements apply even when India buys US technology from a third country. This was one of the problems during the negotiations because New Delhi saw it as excessively "intrusive".