The Department of the Treasury's Office of Foreign Assets Control (OFAC) is amending the Weapons of Mass Destruction Proliferators Sanctions Regulations (WMD Regulations) to update a note to describe how persons designated pursuant to the WMD Regulations for North Korea-related activities are identified on OFAC's Specially Designated Nationals and Blocked Persons List (SDN List). Specifically, OFAC is amending the note to explain that SDN List entries for these designated persons will include additional information regarding certain risks associated with dealings with such persons. Separately, OFAC is amending the Iranian Transactions and Sanctions Regulations to refine the list of organizations whose activities are authorized under the general license for the official business of certain international organizations, and to make a technical correction. OFAC is also making technical edits to the authority citations in both sets of regulations to conform to Federal Register guidance.