ELECTRIC STAFF BLOCK SYSTEM RULES
301. On portions of the railway so specified in the time table, or by special instructions, the use of the main track will be governed by the electric staff block system. Possession of a staff supersedes superiority of trains for train movements.
302. The movement of trains will, unless otherwise provided, be supervised by the train dispatcher who will issue instructions as required to operators or conductors.
303. Special instructions as may be necessary to govern this method of operation will be issued. Except as affected by such instructions and Rules 301 and 302, all Operating, ABS and Interlocking Rules remain in force.