410.340—Determination of relationship; parent, brother, or sister.
An individual will be considered to be the parent, brother, or sister of a miner if the courts of the State in which such miner was domiciled (see § 410.392) at the time of his death would find, under the law they would apply in determining the devolution of the miner's intestate personal property, that the individual is the miner's parent, brother, or sister. Where, under such law, the individual does not bear the relationship to the miner of parent, brother, or sister, but would, under State law, have the same status (i.e., right to share in the miner's intestate personal property) as a parent, brother, or sister, the individual will be deemed to be such. An individual will be considered to be the parent, brother, or sister of a miner if the individual is the stepparent, stepbrother, stepsister, half brother, or half sister of the miner, or is the parent, brother, or sister of the miner by adoption.