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 tenant of the host railroad and positive train control systems are not required by law (including regulations): 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 24102 of title 49, United States Code) on which Amtrak is the sole tenant of the host railroad and positive train control systems are not required by law (including regulations), or otherwise initiate discontinuance of, reduce the frequency of, suspend, or substantially alter the schedule or route of rail service on any portion of such route operated in fiscal year 2018, including implementation of service permitted by section 24305(a)(3)(A) of title 49, United States Code, in lieu of rail service. Administrative provisions—federal railroad administration 150. None of the funds provided to the National Railroad Passenger Corporation may be used to fund any overtime costs in excess of $35,000 for any individual employee: