On 19 January 2018, the FISA Amendments Reauthorization Act of 2017 (S. 139) was implemented. The Act reauthorises Section 702 of the Foreign Intelligence Surveillance Act of 2017 (FISA), which expired on 31 December 2017. Section 702 FISA authorises the US government to "target non-US persons, reasonably believed to be located outside the United States, in order to collect foreign intelligence information". The reauthorised Act expires on 31 December 2023.
Original source