270 days after enactment of this Act and announce the selection of projects to receive awards for such funds no later than 450 days after the enactment of this Act. Consolidated rail infrastructure and safety improvements For necessary expenses related to Consolidated Rail Infrastructure and Safety Improvements Grants, as authorized by section 22907 of title 49, United States Code, $255,000,000, to remain available until expended: Provided , That section 22905(f) of title 49, United States Code, shall not apply to projects for the implementation of positive train control systems otherwise eligible under section 24407(c)(1) of title 49, United States Code: Provided further , That amounts available under this heading for projects selected for commuter rail passenger transportation may be transferred by the Secretary, after selection, to the appropriate agencies to be administered in accordance with chapter 53 of title 49, United States Code: Provided further , That the Secretary shall not limit eligible projects from consideration for funding for planning, engineering, environmental, construction, and design elements of the same project in the same application: Provided further , That unobligated balances remaining after 4 years from the date of enactment may be used for any eligible project under section 22907(c) of title 49, United States Code: Provided further , 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 22907 of title 49, United States Code: Provided further , That the Secretary shall announce the selection of projects to receive awards for funds provided under this heading in fiscal year 2019 by Public Law 116–6 no later than 210 days after the enactment of this Act: Provided further , That the Secretary shall issue the Notice of Funding Opportunity that encompasses funds provided under this heading in this Act no later than 270 days after enactment of this Act and