; and (2) in paragraph (2)(B), by striking or (F) and inserting (F), or (G) . (b) Effective date The amendments made by subsection (a) shall take effect on the date that is 90 days after the date of the enactment of this Act. (c) Determinations of exposure (1) In general The Secretary of Veterans Affairs shall, to the extent practicable, establish and maintain a mechanism by which veterans may determine whether or not they have been possibly exposed to an open burn pit or toxic substance described in subparagraph (G)(ii)(II) of section 1710(e)(1) of title 38, United States Code, as added by subsection (a), for purposes of being considered as covered veterans under such subparagraph. (2) Approval of Secretary Any determination made under paragraph (1) shall be subject to the approval of the Secretary. (3) Appeals The Secretary shall establish a mechanism for appealing a decision made by the Secretary under paragraph (2). (d) Report (1) In general Not later than 30 days after the date on which the Secretary of Defense identifies the individuals described in subparagraph (G)(ii)(II) of section 1710(e)(1) of title 38, United States Code, as added by subsection (a), the Secretary, in consultation with the Secretary of Veterans Affairs, shall submit to the appropriate committees of Congress a report. (2) Elements The report required by paragraph (1) shall include the following: (A) The duty locations or units of the individuals described in paragraph (1), or other information on groups to which such individuals belong. (B) The evidence considered in identifying individuals who were possibly exposed to an open burn pit, toxic substance, or site as described in subparagraph (G)(ii)(II) of section 1710(e)(1) of title 38, United States Code, as added by subsection (a). (C) The criteria used to determine whether an individual was so exposed. (3) Appropriate committees of Congress In this subsection, the term appropriate committees of Congress means— (A) the Committee on Veterans' Affairs and the Committee on Armed Services