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… 401. Location Wherever practicable, fixed signals other than switches will be located above, or to the … the track they govern. Where circumstances require that signals be otherwise placed, such conditions will be … The indications displayed on block and interlocking signals govern operation to the next signal or block end …
187.17
… a valid certificate of rules; and (b) when conditions permit, require those to whom the TOP is read aloud, to read …
54.29
… 1. Time The 24 hour system will be used and will be expressed in … The digits 2359 or 0001 will be used to express the time at midnight. 2. Watches Every conductor, assistant … in a 24 hour period; (ii) set it to reflect the correct time if it reflects a variation of more than 30 seconds; …
90.216
… starting point. When a movement is equipped with a single radio, it must be voice tested as soon as practicable after … the crew commences duty. 118. Devices Used in Lieu of Radio When a communication device is used in lieu of a radio, all radio rules are applicable. 119. Continuous …
54.43