; (iii) prevention services; (iv) substance use disorder education and prevention services; (v) at the request of runaway youth or homeless youth, testing for sexually transmitted infections; (vi) trauma-informed services, including for such youth who are victims of trafficking; and (vii) an assessment of— (I) family engagement in support and reunification, if reunification is appropriate; (II) interventions; and (III) services for parents or legal guardians of such youth or, if appropriate, individuals identified by such youth as family. ; (2) in section 312— (A) in subsection (b)— (i) by striking paragraph (2) and inserting the following: (2) shall use such assistance to establish, strengthen, or fund a runaway and homeless youth center that provides temporary shelter or a locally controlled project, including a host family home, that has— (A) a minimum capacity of not less than 4 youth, except if there is an established minimum number of beds per youth shelter or project location; (B) a maximum capacity of not more than 20 youth, except where the applicant demonstrates that the State where the center or locally controlled project is located has a State or local law or regulation that allows a higher maximum to comply with licensure requirements for child and youth serving centers or projects; (C) a ratio of staff to youth that is sufficient to ensure adequate supervision and treatment; and (D) if it is a mixed project, not more than 20 youth per project, except where the applicant demonstrates that the project has a State or local law or regulation that allows a higher maximum to comply with licensure requirements for child and youth serving projects; ; (ii) in paragraph (5), by striking or legal guardians and inserting , legal guardians, or individuals identified by such youth as family, if appropriate,