; (ii) a county that can demonstrate that the number of drug overdose deaths during the most recent 3-year period for which such data are available was not less than the number of such deaths for the county that ranked at the 90th percentile of all counties, as determined by the Secretary; or (iii) a city that is located within a county described in clause (i) or (ii), that meets the requirements of paragraph (3); and (B) submit to the Secretary an application in accordance with section 3404. (2) Multiple contiguous counties In the case of an eligible county that is contiguous to one or more other eligible counties within the same State, the group of counties shall— (A) be considered as a single eligible county for purposes of a grant under this section; (B) submit a single application under section 3404; (C) form a joint planning council (for the purposes of section 3402); and (D) establish, through intergovernmental agreements, an administrative mechanism to allocate funds and substance use disorder treatment services under the grant based on— (i) the number and rate of drug overdose deaths and nonfatal drug overdoses in each of the counties that compose the eligible county; (ii) the severity of need for services in each such county; and (iii) the health and support personnel needs of each such county. (3) Cities and counties within multiple contiguous counties (A) In general A city that is within an eligible county described in paragraph (1), or a group of counties that is within a group of counties determined to be an eligible county under paragraph (2), shall be eligible to receive a grant under section 3401 if such city or county or group of counties meets the requirements of subparagraph (B). (B) Requirements A city or county meets the requirements of this subparagraph if such city or county— (i) except as provided in subparagraph (C), has a population of not less than 50,000 residents; (ii) meets the requirements of paragraph (1)(A); (iii) submits an application under section 3404