Invites the Joint Investigative Mechanism to engage relevant regional States in pursuit of its mandate, including in order to identify to the greatest extent feasible any individuals, entities or groups associated with ISIL (Da’esh) or ANF who were perpetrators, organizers, sponsors or otherwise involved in the use of chemicals as weapons in the Syrian Arab Republic where the OPCW FFM determines or has determined that a specific incident in the Syrian Arab Republic involved or likely involved the use of chemicals as weapons, encourages relevant regional states to provide, as appropriate, to the Joint Investigative Mechanism information on non-State actors’ access to chemical weapons and their components or efforts by non-State actors to develop, acquire, manufacture, possess, transport, transfer or use chemical weapons and their means of delivery that occur under their jurisdiction, including relevant information from national investigations, and underscores the importance of States Parties’ obligations under Article VII of the Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on Their Destruction (CWC), and the full implementation of paragraph 8 of resolution 2235, including with respect to information pertaining to non-State actors;