410.215—Duration of entitlement; parent, brother, or sister.
(a)
parent, brother, or sister is entitled to benefits beginning with the month all the conditions of entitlement described in § 410.214 are met.
(b)
The last month for which such parent is entitled to benefits is the month before the month in which the parent dies.
(c)
The last month for which such sister is entitled to benefits is the month before the month in which any of the following events occurs:
(d)
The last month for which such brother is entitled to benefits is the month before the month in which any of the following events first occurs:
(5)
If his entitlement is based on disability, the first month in no part of which such individual is under a disability.