; or (iii) vacant, unappropriated, and unreserved; and (C) not a unit of the National Park System, a National Preserve, or a National Monument. ; and (C) by redesignating paragraphs (5) and (6) as paragraphs (4) and (5), respectively; (2) in subsection (b)— (A) in paragraph (1), by striking subparagraph (B) and inserting the following: (B) is a veteran who served during the period beginning on August 5, 1964, and ending on May 7, 1975. ; (B) by striking paragraph (2) and inserting the following: (2) Deceased persons If an individual who would otherwise have been eligible for an allotment under this section dies before applying for an allotment, an heir of the person may apply for, and receive, an allotment under this section, on behalf of the estate of the person. ; and (C) by striking paragraph (3) and inserting the following: (3) Limitations No person who received an allotment or has a pending allotment under the Act of May 17, 1906, may receive an allotment under this section, other than— (A) an heir who applies for, and receives, an allotment on behalf of the estate of a deceased person under paragraph (2); and (B) a person who, prior to the date on which the Secretary promulgates regulations pursuant to section 3 of the Alaska Native Veterans Land Allotment Equity Act, received an allotment under the Act of May 17, 1906 (34 Stat. 197, chapter 2469), that has a total area of less than 160 acres. ; (3) by redesignating subsections (d) and (e) as subsections (f) and (g), respectively; (4) by inserting after subsection (c) the following: (d) Approval of allotments (1) In general Subject to any valid right in existence on the date of enactment of the Alaska Native Veterans Land Allotment Equity Act, and except as provided in paragraph (3), not later than 5 years after the date of the enactment of the Alaska Native Veterans Land Allotment Equity Act, the Secretary shall— (A) approve any application for an allotment filed in accordance with subsection (a)