area, as designated by the Bureau of the Census, that had a population greater than 250,000 in the 2010 decennial census: Provided further, That for the purpose of determining if an award for planning, preparation, or design is an urban award, the project location is the location of the project being planned, prepared, or designed: Provided further, That for the purpose of determining if an award for eligible projects located in or to directly benefit areas of persistent poverty is an urban award, the project location is the location of the eligible project in or to directly benefit areas of persistent poverty: Provided further, That each award under this heading in this title that is not an urban award is a rural award: Provided further, That of the amounts awarded under this heading in this title, 60 percent shall be awarded as urban awards and 40 percent shall be awarded as rural awards: Provided further, That for rural awards and awards for eligible projects located in or to directly benefit areas of persistent poverty, the minimum grant size shall be $5,000,000 and the Secretary may increase the Federal share of costs above 80 percent: Provided further, That the Secretary may retain up to $30,000,000, to remain available until September 30, 2023, of the amounts made available under this heading in this title, and may transfer portions of such amounts to the Administrators of the Federal Highway Administration, the Federal Transit Administration, the Federal Railroad Administration, and the Maritime Administration to fund the award and oversight of grants and credit assistance made under the national infrastructure investments program: Provided further, That the Secretary shall issue the Notice of Funding Opportunity for amounts made available under this heading in this title not later than 180 days after the date of enactment of this Act: Provided further, That such Notice of Funding Opportunity shall require application submissions 90 days after the publishing of such Notice: Provided further, That of the