Within the boundaries of the recreation area, the Secretary may acquire lands and waters or interests therein by donation, purchase or exchange, except that lands owned by the States of New York or New Jersey or any political subdivisions thereof may be acquired only by donation.
With the concurrence of the agency having custody thereof, any Federal property within the boundaries of the recreation area may be transferred, without consideration, to the administrative jurisdiction of the Secretary for administration as a part of the recreation area.
Within the Jamaica Bay Unit, (1) the Secretary may accept title to lands donated by the city of New York subject to a retained right to continue existing uses for a specifically limited period of time if such uses conform to plans agreed to by the Secretary, and (2) the Secretary may accept title to the area known as Broad Channel Community only if, within five years after October 27, 1972, all improvements have been removed from the area and a clear title to the area is tendered to the United States.