dependent
(5) In the case of the dependent parent or parents of a miner whose death is due to pneumoconiosis, or, except with respect to a claim filed under part C of this subchapter on or after the effective date of the Black Lung Benefits Amendments of 1981, of a miner who is receiving benefits under this part at the time of his death or who was totally disabled by pneumoconiosis at the time of death, and who is not survived at the time of his death by a widow or a child, in the case of the dependent surviving brother(s) or sister(s) of such a miner who is not survived at the time of his death by a widow, child, or parent, in the case of the dependent parent or parents of a miner (who is not survived at the time of his or her death by a widow or a child) who are entitled to the payment of benefits under paragraph (5) of section 921(c) of this title , or in the case of the dependent surviving brother(s) or sister(s) of a miner (who is not survived at the time of his or her death by a widow, child, or parent) who are entitled to the payment of benefits under paragraph (5) of section 921(c) of this title , benefits shall be paid under this part to such parent(s), or to such brother(s), or sister(s), at the rate specified in paragraph (3) (as if such parent(s) or such brother(s) or sister(s), were the children of such miner). In determining for purposes of this paragraph whether a claimant bears the relationship as the miner’s parent, brother, or sister, the Secretary shall apply legal standards consistent with those applicable to relationship determination under title II of the Social Security Act [ 42 U.S.C. 401 et seq.]. No benefits to a sister or brother shall be payable under this paragraph for any month beginning with the month in which he or she receives support from his or her spouse, or marries. Benefits shall be payable under this paragraph to a brother only if he is— (1) (A) under eighteen years of age, or (B) under a disability as defined in section 223(d) of the Social Security Act [ 42 U.S.C. 423(d) ] which began before the age specified in section 202(d)(1)(B)(ii) of such Act [ 42 U.S.C. 402(d)(1)(B)(ii) ], or in the case of a student, before he ceased to be a student, or (C) a student as defined in section 902(g) of this title ; or (2) who is, at the time of the miner’s death, disabled as determined in accordance with section 223(d) of the Social Security Act [ 42 U.S.C. 423(d) ], during such disability. Any benefit under this paragraph for a month prior to the month in which a claim for such benefit is filed shall be reduced to any extent that may be necessary, so that it will not render erroneous any benefit which, before the filing of such claim, the Secretary has certified for payment for such prior months. As used in this paragraph, “dependent” means that during the one year period prior to and ending with such miner’s death, such parent, brother, or sister was living in the miner’s household, and was, during such period, totally dependent on the miner for support. Proof of such support shall be filed by such claimant within two years after May 1972, or within two years after the miner’s death, whichever is the later. Any such proof which is filed after the expiration of such period shall be deemed to have been filed within such period if it is shown to the satisfaction of the Secretary that there was good cause for failure to file such proof within such period. The determination of what constitutes “living in the miner’s household”, “totally dependent upon the miner for support,” and “good cause,” shall for purposes of this paragraph be made in accordance with regulations of the Secretary. Benefit payments under this paragraph to a parent, brother, or sister, shall be reduced by the amount by which such payments would be reduced on account of excess earnings of such parent, brother, or sister, respectively, under section 203(b)–(l) of the Social Security Act [ 42 U.S.C. 403(b) –(l)], as if the benefit under this paragraph were a benefit under section 202 of such Act [ 42 U.S.C. 402 ].