; and (B) a survivor of a veteran who was awarded dependency and indemnity compensation for the death of a veteran resulting from the illness on the basis of the presumption before that date shall continue to be entitled to receive dependency and indemnity compensation on that basis. (c) Effective date of benefit awards The effective date of any benefit awarded by reason of this section shall be determined in accordance with section 5110 of title 38, United States Code, but shall in no case be earlier than the effective date of the final regulations prescribed pursuant to subsection (b)(2). (d) Definitions In this section: (1) The term covered study includes— (A) the study conducted under section 2; and (B) any subsequent study or any study conducted by the National Academies of Sciences, Engineering, and Medicine regarding the effects of exposure of humans to toxic substances at Karshi Khanabad Air Base, Uzbekistan, at any time during the period beginning October 1, 2001, and ending December 31, 2005. (2) The term covered veteran means a veteran who was deployed as a member of the Armed Forces to Karshi Khanabad Air Base, Uzbekistan, at any time during the period beginning October 1, 2001, and ending December 31, 2005. 5. Access of the National Academies of Sciences, Engineering, and Medicine to information from the Department of Defense Upon request by the National Academies of Sciences, Engineering, and Medicine (in this section referred to as the Academies ), the Secretary of Defense shall provide to the Academies information in the possession of the Department of Defense that the Academies determine useful in performing a covered study, as that term is defined in section 4(d). Such information includes, at a minimum, all environmental sampling data relative to any location included in the study.