The Iran, North Korea, Syria, Nonproliferation Act (INKSNA), also known as the Iran Nonproliferation Act of 2000, is an act of US Congress.
The act was first called Iran Nonproliferation Act. In 2005, Syria was added and in 2006 North Korea the act was then called the Iran, North Korea, Syria, Nonproliferation Act. Several companies are sanctioned under the INKSNA act.
Waivers of the provisions of this act have been required to allow NASA to purchase launch services from Russia, in order to support its manned space program in the period of some years between the retirement of the Space Shuttle and the availability of its successor.