5 CFR 550.1505: Order of precedence.

If the authorized agency official determines the agency will furnish a flag, it must be issued to one beneficiary pursuant to the following order of precedence—

(a) The widow or widower;

(b) If none, to a child (including step, foster, or adopted child), according to age (i.e., oldest to youngest);

(c) If none, to a parent (including step, foster, or adoptive parent);

(d) If none, to a sibling (including step, half, or adopted sibling), according to age; (i.e., oldest to youngest);

If none, to any individual related by blood or close family affiliation.