03/22/1946
https://www.presidency.ucsb.edu...
"It is ordered that the following-described land at Waiakea-Kai near Hilo Breakwater, Waiakea, South Hilo, Hawaii, be, and it is hereby, restored to the jurisdiction of the Territory of Hawaii:"
"By virtue of and pursuant to the authority vested in me by section 4 of the Air Commerce Act of 1926 (44 Stat. 570), the airspace above the three following-described portions of the United States is h..."
"Any person navigating an aircraft within any of these airspace reservations in violation of the provisions of this order will be subject to the penalties prescribed in the Civil Aeronautics Act of 193..."
"There is an urgent need for this structure, not only from the standpoint of flood control, but also to provide additional electric energy and conservation of water to meet growing demands in the area."