44 CFR §11.71

1. (a)A claim pursuant to this subpart may only be made by: (1) An employee of FEMA; (2) a former employee of FEMA whose claim arises out of an incident occurring before his/her separation from FEMA; (3) survivors of a person named in paragraph (a) (1) or (2) of this section, in the following order of precedence: (i) Spouse; (ii) children; (iii) father or mother, or both or (iv) brothers or sisters, or both; (4) the authorized agent or legal representative of a person named in paragraphs (a) (1), (2), and (3) of this section.
2. (b)A claim may not be presented by or for the benefit of a subrogee, assignee, conditional vendor, or other third party.