As soon as possible after availability of funds after December 29, 1966 the bureau shall proceed to acquire title in fee simple to land within the restricted zone. The bureau shall acquire within the restricted zone any other rights the bureau determines necessary or convenient to accomplish the purposes of this subchapter. Nothing contained in this section and no action under this section may limit any of the powers or authority of the bureau under this subchapter.   [PL 1997, c. 678, §13 (NEW); PL 2011, c. 657, Pt. W, §7 (REV); PL 2013, c. 405, Pt. A, §24 (REV).]