; (2) tenant-based assistance under section 8(o), pursuant to paragraph (6)(A)(ii)(I) of such section; (3) project-based assistance under section 8(o)(13), pursuant to subparagraph (J)(ii)(I) of such section; and (4) occupancy in a dwelling unit in a project assisted with project-based assistance under section 8, pursuant to subsection (d)(1)(A)(i)(I) of such section. (b) Early application for assistance Notwithstanding the period during which a preference for housing assistance is provided for a person, an otherwise eligible person may apply for such occupancy or assistance at any time after such person attains 16 years of age. (c) Requirement for education or training (1) Requirement Except as provided in paragraph (2), each person occupying a dwelling unit pursuant to a preference for housing assistance shall, not later than 30 months after such initial occupancy, comply with the requirements under one of the following subparagraphs, as selected by the public housing agency for or project owner of the assisted housing dwelling unit involved, in consultation with relevant public child welfare agencies: (A) Option 1 The requirements under this subparagraph are— (i) obtaining a recognized postsecondary credential or a secondary school diploma or its recognized equivalent; (ii) enrollment in an institution of higher education, as such term is defined in section 101(a) of the Higher Education Act of 1965 ( 20 U.S.C. 1001(a) ) and including the institutions described in subparagraphs (A) and (B) of section 102(a)(1) of such Act ( 20 U.S.C. 1002(a)(1) )