; and (2) by adding at the end the following: (6) yardmaster employee means an individual responsible for supervising and coordinating the control of trains and engines operating within a rail yard. . (c) Conforming amendment The analysis for chapter 211 of title 49, United States Code, is amended by striking the item relating to section 21103 and inserting the following: 21103. Limitations on duty hours of train employees and yardmaster employees. . 9512. Leaking brakes The Administrator of the Federal Railroad Administration shall take such actions as are necessary to ensure that no DB–60 air brake control valve manufactured before January 1, 2006, is equipped on a rail car operating on— (1) a unit train north of the 37th parallel on or after August 1, 2022; or (2) a non-unit train north of the 37th parallel on or after August 1, 2024. 9513. Annual report on PTC system failures Section 20157 of title 49, United States Code, is amended by adding at the end the following: (m) Annual report of system failures Not later than April 16 of each calendar year following the date of an implementation deadline under subsection (a)(1), each railroad shall submit to the Secretary a report containing the number of positive train control system failures, separated by each major hardware category, that occurred during the previous calendar year. . 9514. Fatigue reduction pilot projects (a) Sense of Congress It is the sense of Congress that— (1) maintaining the highest level of safety across the nation’s railroad network is of critical importance; (2) ensuring the safety of rail transportation requires the full attention of all workers engaged in safety-critical functions; (3) fatigue degrades an individual’s ability to stay awake, alert, and attentive to the demands of safe job performance; (4) the cognitive impairments to railroad workers that result from fatigue can cause dangerous situations that put workers and communities at risk