; (II) the individual is blind or disabled, and the individual’s blindness or disability renders the individual unable to perform substantial gainful activity; and (III) the individual meets the nonmedical requirements for eligibility for benefits under this title. (iii) (I) Except as provided in subclause (II), the period prescribed in this clause with respect to an individual is 36 consecutive months beginning with the month following the most recent month for which the individual was ineligible for benefits under this title before the period of ineligibility described in clause (ii)(I)(bb). (II) In the case of an individual who fails to file a reinstatement request within the period described in subclause (I), the Commissioner may extend the period if the Commissioner determines that the individual had good cause for the failure to so file. (B) (i) (I) A request for reinstatement shall be filed on such form, and contain such information, as the Commissioner may prescribe. (II) A request for reinstatement shall include express declarations by the individual stating that the individual meets the requirements specified in subclauses (II) and (III) of subparagraph (A)(ii). (III) A request for reinstatement shall include an express declaration by a health care professional that the individual is blind or disabled. (ii) A request for reinstatement filed in accordance with this paragraph may constitute an application for benefits in the case of any individual who the Commissioner determines is not eligible for reinstated benefits under this paragraph. (C) In determining whether an individual meets the requirement of subparagraph (A)(ii)(II), the provisions of section 1614(a)(4) shall apply. (D) (i) Eligibility for benefits reinstated under this paragraph shall commence with the benefit payable for the month in which— (I) a request for reinstatement is filed