Stop Arming Terrorists Act This bill prohibits the use of federal agency funds to provide covered assistance to: (1) Al Qaeda, Jabhat Fateh al-Sham, the Islamic State of Iraq and the Levant (ISIL), or any individual or group that is affiliated with, associated with, cooperating with, or adherents to such groups; or (2) the government of any country that the Office of the Director of National Intelligence (ODNI) determines has, within the most recent 12 months, provided covered assistance to such a group or individual. "Covered assistance" is defined as: defense articles, defense services, training or logistical support, or any other military assistance provided by grant, loan, credit, transfer, or cash sales; intelligence sharing; or cash assistance. The ODNI shall: make, within 90 days after this bill's enactment, initial determinations about such countries and about whether an individual or group is, or has been within the most recent 12 months, affiliated with, associated with, cooperating with, or an adherent to Al Qaeda, Jabhat Fateh al-Sham, or ISIL; review and make subsequent determinations regarding such countries, groups, or individuals every 6 months in consultation with specified congressional committees; brief such committees on each determination; and brief such committees on any other country, individual, or group that the ODNI considered but did not make a determination that the the country provided covered assistance to, or that the group or individual is affiliated with, associated with, cooperating with, or an adherent to, Al Qaeda, Jabhat Fateh al-Sham, or ISIL.