Department of Justice (DOJ) — U.S. cabinet department; parent of the fbi. Co-issued (with the Department of Homeland Security) the interim final rule implementing the safer-skies-act at 28 CFR Part 124 (effective July 1, 2026), authorizing SLTT law-enforcement/correctional-agency C-UAS operations. The Attorney General is the certifying authority (via the FBI’s national-counter-uas-training-center) for SLTT mitigation training and holds suspension/civil-penalty authority under 6 U.S.C. 124n-1.