Pub. L. 111-84, div. A, tit. I, subtit. E, sec. 142
UNMANNED CARGO-CARRYING-CAPABLE AERIAL VEHICLES.
SEC. 142. UNMANNED CARGO-CARRYING-CAPABLE AERIAL VEHICLES. None of the amounts authorized to be appropriated for procurement may be obligated or expended for an unmanned cargo-carrying-capable aerial vehicle until a period of 15 days has elapsed after the date on which the Vice Chairman of the Joint Chiefs of Staff and the Under Secretary of Defense for Acquisition, Technology, and Logistics certify to the congressional defense committees that the Joint Requirements Oversight Council has approved a joint and common requirement for an unmanned cargo-carrying-capable aerial vehicle type.