; and (ii) the date of such diagnosis. (B) The years of service of such firefighter. (C) A description of any special circumstances that may support a more substantial award. (3) Time limitation An eligible claimant may submit a claim under paragraph (1) during the period beginning on the date on which the regulations are promulgated as final under section 3403 and ending on the later of— (A) the date that is 2 years after the date on which such regulations are promulgated as final; and (B) the date that is 2 years after the date of death of the firefighter in relation to whom the eligible claimant seeks compensation. (c) Eligible claimant (1) In general A person is eligible to submit a claim under the Program only if such person— (A) (i) served as a firefighter for 2 or more years; and (ii) during or after such service, suffered a PFAS-related health condition; or (B) in the case of a deceased firefighter who meets the requirements of subparagraph (A)— (i) is the administrator of the estate of such firefighter; or (ii) in the case that the claim is submitted before the date on which the estate of such firefighter is opened— (I) is an adult heir of such firefighter; and (II) is represented by counsel. (2) Claims from multiple adult heirs prohibited If more than 1 adult heir described in paragraph (1)(B)(ii) submits a claim for the same firefighter before the date on which the estate of such firefighter is opened, all such adult heirs shall cease to be eligible claimants. In such case, the eligible claimant shall be the administrator of the firefighter’s estate under paragraph (1)(B)(i). (d) Review of claims (1) In general For each claim submitted under subsection (b)(1), the Secretary shall— (A) determine whether the firefighter suffered a PFAS-related health condition; and (B) not later than 120 days after the date on which the claim is submitted— (i) determine the amount of compensation (if any) to award to the eligible claimant, as described in subsection (e)