; and (C) the likelihood that the grant will lead to a meaningful reduction in racial and economic isolation for children in covered schools. (2) Priority In awarding grants under this section, the Secretary shall give priority to the following eligible entities: (A) First, to an eligible entity that submitted an application for a grant under the Opening Doors, Expanding Opportunities program described in the notice published by the Department of Education in the Federal Register on December 14, 2016 (81 Fed. Reg. 90343 et seq.). (B) Second, to an eligible entity that proposes, in an application submitted under section 5, to use the grant to support a program that addresses racial isolation. (C) Third, to an eligible entity that proposes, in an application submitted under section 5, to use the grant to support a program that extends beyond one local educational agency, such as an inter-district or regional program. (D) Fourth, to an eligible entity that demonstrates meaningful coordination with local housing agencies to increase access to schools that have a disproportionately low number of low-income students. (c) Duration of grants (1) Planning grant A planning grant awarded under this section shall be for a period of not more than 1 year. (2) Implementation grant An implementation grant awarded under this section shall be for a period of not more than 3 years, except that the Secretary may extend an implementation grant for an additional 2-year period if the eligible entity receiving the grant demonstrates to the Secretary that the eligible entity is making significant progress, as determined by the Secretary, on the program performance measures described in section 7. 5. Applications In order to receive a grant under section 4, an eligible entity shall submit an application to the Secretary at such time and in such manner as the Secretary may require. Such application shall include— (1) a description of the program for which the eligible entity is seeking a grant, including— (A) how the eligible entity