View all text of Subjgrp 5 [§ 1242.10 - § 1242.33]
§ 1242.17 - Signals and interlockers (accounts XX-17-19 and XX-18-19).
Separate common expenses on the basis of the total train-hours in running service, and/or the yard-switching plus train switching hours in the switching service over the tracks on which the common signals and interlockers are used.