((a)) ** .—** If a veteran submits to the Secretary a claim for compensation for a service-connected disability under with evidence of a disability and a toxic exposure that occurred during active military, naval, air, or space service, the Secretary may, in adjudicating such claim, consider—

((1)) any record of the veteran in an exposure tracking record system; and

((2)) if no record of the veteran in an exposure tracking record system indicates that the veteran was subject to a toxic exposure during active military, naval, air, or space service, the totality of the circumstances of the service of the veteran.

((b)) ** .—**

((1)) The Secretary shall, for purposes of section 1110 and chapter 17 of this title, presume that any covered veteran was exposed to the substances, chemicals, and airborne hazards identified in the list under paragraph (2) during the service of the covered veteran specified in subsection (c)(1), unless there is affirmative evidence to establish that the covered veteran was not exposed to any such substances, chemicals, or hazards in connection with such service.

((2)) The Secretary shall—

((A)) establish and maintain a list that contains an identification of one or more such substances, chemicals, and airborne hazards as the Secretary, in collaboration with the Secretary of Defense, may determine appropriate for purposes of this section; and

((B)) determine, using procedures consistent with and through the conduct of a formal evaluation under , whether to establish an end date for a covered veteran to qualify for presumptions of exposure under this section, if appropriate, but in no case establish an end date earlier than the last day of the period specified in section 101(33) for the Persian Gulf War.

((3)) Beginning not later than two years after the date of the enactment of the Sergeant First Class Heath Robinson Honoring our Promise to Address Comprehensive Toxics Act of 2022, and not less frequently than once every two years thereafter, the Secretary shall submit to the Committee on Veterans’ Affairs of the Senate and the Committee on Veterans’ Affairs of the House of Representatives a report identifying any additions or removals to the list under paragraph (2) during the period covered by the report.

((c)) ** .—** In this section:

((1)) The term “covered veteran” means any veteran who—

((A)) on or after , performed active military, naval, air, or space service while assigned to a duty station in, including airspace above—

((i)) Bahrain;

((ii)) Iraq;

((iii)) Kuwait;

((iv)) Oman;

((v)) Qatar;

((vi)) Saudi Arabia;

((vii)) Somalia; or

((viii)) United Arab Emirates; or

((B)) on or after , performed active military, naval, air, or space service while assigned to a duty station in, including airspace above—

((i)) Afghanistan;

((ii)) Djibouti;

((iii)) Egypt;

((iv)) Jordan;

((v)) Lebanon;

((vi)) Syria;

((vii)) Yemen;

((viii)) Uzbekistan; or

((ix)) any other country determined relevant by the Secretary.

((2)) The term “exposure tracking record system”—

((A)) means any system, program, or pilot program used by the Secretary of Veterans Affairs or the Secretary of Defense to track how veterans or members of the Armed Forces have been exposed to various occupational or environmental hazards; and

((B)) includes the Individual Longitudinal Exposure Record, or successor system.

((3)) The term “toxic exposure risk activity” has the meaning given such term in .