Network Grants to the National Railroad Passenger Corporation heading, not less than $50,000,000 shall be made available to bring Amtrak-served facilities and stations into compliance with the Americans with Disabilities Act. National network 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 National Network as authorized by section 11101(b) of the Fixing America’s Surface Transportation Act (division A of Public Law 114–94 ), $1,291,600,000, to remain available until expended: Provided , That the Secretary may retain up to an additional $2,000,000 of the funds provided under this heading to fund expenses associated with the State-Supported Route Committee established under section 24712 of title 49, United States Code: Provided further , That at least $50,000,000 of the amount provided under this heading shall be available for the development, installation and operation of railroad safety technology, including the implementation of a positive train control system, on State-supported routes as defined under section 24102(13) of title 49, United States Code, on which positive train control systems are not required by law or regulation: Provided further , That not less than $50,000,000 of the amount provided under this heading shall be for capital expenses related to safety improvements, maintenance, and the non-Federal match for discretionary Federal grant programs to enable continued passenger rail operations on long-distance routes (as defined in section 24102 of title 49, United States Code) on which Amtrak is the sole operator on a host railroad’s line and a positive train control system is not required by law or regulation: Provided further , That none of the funds provided under this heading shall be used by Amtrak to give notice under subsection (a) or (b) of section 24706 of title 49, United States Code, with respect to long-distance routes (as defined in section