of the amount provided under this heading for the costs of award and project management oversight of grants carried out under section 24911 of title 49, United States Code: Provided further , That in selecting an applicant for a grant, the Secretary shall first give preference to eligible projects for which the environmental impact statement required under the National Environmental Policy Act and design work is already complete at the time of the grant application review, or to projects that address major critical assets which have conditions that pose a substantial risk now or in the future to the reliability of train service. Consolidated rail infrastructure and safety improvements For necessary expenses related to Consolidated Rail Infrastructure and Safety Improvements Grants as authorized by section 24407 of title 49, United States Code, $25,000,000, to remain available until expended: Provided , That the Secretary may withhold up to one percent of the amount provided under this heading for the costs of award and project management oversight of grants carried out under section 24407 of title 49, United States Code. Northeast corridor grants to the national railroad passenger corporation To enable the Secretary of Transportation to make grants to the National Railroad Passenger Corporation for activities associated with the Northeast Corridor as authorized by section 11101(a) of the Fixing America’s Surface Transportation Act (division A of Public Law 114–94 ), $328,000,000, to remain available until expended: Provided , That the Secretary may retain up to one-half of 1 percent of the funds provided under both this heading and the National Network Grants to the National Railroad Passenger Corporation heading to fund the costs of project management and oversight of activities authorized by section 11101(c) of division A of Public Law 114–94 : Provided further , That in addition to the project management oversight funds authorized under section 11101(c) of division A of Public Law 114–94 , the Secretary may