38 U.S.C. § 1167

1. (a)Whenever a law, including through a regulation or Federal court decision or settlement, establishes or modifies a presumption of service connection, the Secretary shall—
   1. (1)identify all claims for compensation under this chapter that—
      1. (A)were submitted to the Secretary;
      2. (B)were evaluated and denied by the Secretary before the date on which such provision of law went into effect; and
      3. (C)might have been evaluated differently had the establishment or modification been applicable to the claim; and
   2. (2)pursuant to subsection (b), conduct outreach to the claimants.
2. (b)
   1. (1)The Secretary shall conduct outreach to inform claimants identified under subsection (a) that they may submit a supplemental claim in light of the establishment or modification of a presumption of service connection described in subsection (a).
   2. (2)Outreach under paragraph (1) shall include the following:
      1. (A)The Secretary shall publish on the internet website of the Department a notice that such veterans may elect to file a supplemental claim.
      2. (B)The Secretary shall notify, in writing or by electronic means, veterans service organizations of the ability of such veterans to file a supplemental claim.
      3. (C)The Secretary shall contact each claimant identified under subsection (a) in the same manner that the Department last provided notice of a decision.