; and (2) provide notice of travel described in paragraph (1) to the Director of National Intelligence and the Director of the Federal Bureau of Investigation within 1 hour of receiving notice of such travel. 615. Modification of certain reporting requirement on travel of foreign diplomats Section 502(d)(2) of the Intelligence Authorization Act for Fiscal Year 2017 ( Public Law 115–31 ) is amended by striking the number and inserting a best estimate . 616. Semiannual report on referrals to Department of Justice by elements of the intelligence community regarding unauthorized disclosure of classified information (a) Reports required Not less frequently than once every 6 months, the Assistant Attorney General for National Security of the Department of Justice, in consultation with the Director of the Federal Bureau of Investigation, shall submit to the congressional intelligence committees a report on the status of each referral made to the Department of Justice from any element of the intelligence community regarding an unauthorized disclosure of classified information made during the most recent 365-day period or any referral that has not yet been closed, regardless of the date the referral was made. (b) Contents Each report submitted under subsection (a) shall include, for each referral covered by the report, at a minimum, the following: (1) The date the referral was received. (2) A statement indicating whether the alleged unauthorized disclosure described in the referral was substantiated by the Department of Justice. (3) A statement indicating the highest level of classification of the information that was revealed in the unauthorized disclosure. (4) A statement indicating whether an open criminal investigation related to the referral is active. (5) A statement indicating whether any criminal charges have been filed related to the referral. (6) A statement indicating whether the Department of Justice has been able to attribute the unauthorized disclosure to a particular entity or individual. (c) Form of report