; (2) by redesignating clause (iii) as clause (iv); and (3) by inserting after clause (ii) the following new clause (iii): (iii) a need for regular or extensive instruction or supervision in completing two or more instrumental activities of daily living; or . (d) Eligibility for assistance Subsection (a) of such section is amended by adding at the end the following new paragraph: (11) Notwithstanding any other provision of this subsection, a family caregiver of an eligible veteran who is eligible under paragraph (2) solely because of a serious injury or illness (including traumatic brain injury, psychological trauma, or other mental disorder) incurred or aggravated in the line of duty in the active military, naval, or air service before September 11, 2001, is eligible for assistance under this subsection as follows: (A) Not earlier than October 1, 2019, if the family caregiver would merit a monthly personal caregiver stipend under paragraph (3)(A)(ii)(V) in an amount that is in the highest tier specified in the schedule established by the Secretary under paragraph (3)(C)(i). (B) Not earlier than October 1, 2021, if the family caregiver would merit such a stipend in an amount that is in the middle tier specified in such schedule. (C) Not earlier than October 1, 2023, if the family caregiver would merit such a stipend in an amount that is in the lowest tier specified in such schedule. .