Intelligence Community Policy Guidance 107.1: Requests for Identities of U.S. Persons in Disseminated Intelligence Reports, January 11, 2018 [open pdf - 3MB]
"(1.) This Intelligence Community Policy Guidance (ICPG) establishes guidance for responding to requests for the identities of U.S. persons in disseminated intelligence reports. (2.) The Intelligence Community (IC) must continue to provide intelligence to officials who need the information to protect the security of the nation and its allies, and must do so within the framework of protections and oversight that has been established to protect privacy and civil liberties. This ICPG ensures consistency across the IC concerning the release of the identities of U.S. persons that were originally omitted from disseminated intelligence reports."
Intelligence Community Policy Guidance 107.1; ICPG 107.1
Office of the Director of National Intelligence: http://www.dni.gov/