; and (2) strives to balance derailment risk and rail yard employee safety. 4. Brake inspections After completing the review required under section 3(a)(1), the Secretary of Transportation shall issue regulations that— (1) prohibit any train from being moved out of the switchyard before all required brake inspections of such train have been completed; (2) prohibit conducting brake inspections of a train while such train is in motion; and (3) allow only the qualified mechanical inspector (as defined in section 232.5 of title 49, Code of Federal Regulations) assigned to inspect a locomotive or rail car to sign off on— (A) the Form FRA F6180–49A (commonly known as the blue card ) relating to locomotive inspections; and (B) the satisfactory Class I brake inspection of end-of-train device form relating to rail car inspections. 5. Safety waivers (a) In general The Administrator of the Federal Railroad Administration shall post, on a publicly accessible website, a list of all active safety waivers granted by the Federal Railroad Administration to Class I railroads pursuant to its authority under section 20103(d) of title 49, United States Code, relating to brake procedures, unequipped locomotives, brake inspection requirements, and safety training for rail labor employees. (b) Contents The Administrator shall include, on the posting required under subsection (a), a summary of the waivers described in subsection (a), including— (1) the number of active waivers; (2) the number of such waivers that have been extended beyond their original termination date; (3) the average duration of each such waiver; and (4) a summary of the regulations that were so waived. 6. Proper functioning of emergency brake signals The Administrator of the Federal Railroad Administration shall amend part 232 of title 49, Code of Federal Regulations, to require— (1) more frequent communication checks between a head-of-train device and an end-of-train device