; or (B) a nonprofit entity that conducts a program described in subparagraph (A) in cooperation with a trauma center described in such subparagraph; and (2) submit to the Secretary an application at such time, in such manner, and containing such information as the Secretary may require. (c) Use of grant funds An entity that receives a grant under subsection (a)(1) shall use the grant funds to conduct or expand research on the effectiveness of violence prevention efforts in reducing the incidence of re-injury and re-incarceration caused by interpersonal violence. (d) Reports (1) Reports to Secretary (A) In general Not later than four years after the date of enactment of the Stop the Violence Act of 2019, an entity that receives a grant under subsection (a)(1) shall submit to the Secretary a report on— (i) any findings of research conducted, or expanded, by the entity under subsection (c); and (ii) if applicable, the manner in which the entity has incorporated such findings in the violence intervention or violence prevention program conducted by such entity. (B) Option for joint report To the extent feasible and appropriate, an entity that receives a grant under subsection (a)(1) may elect to coordinate with one or more other entities that have received such a grant to submit a joint report that meets the requirements of subparagraph (A). (2) Report to Congress Not later than six years after the date of enactment of the Stop the Violence Act of 2019, the Secretary shall submit to Congress a report— (A) on any findings resulting from reports submitted to the Secretary under paragraph (1); (B) on best practices developed by the Secretary under subsection (e)