(1) The Loco pilot shall not take his train from a block station to the next block station unless he has been given an authority to proceed,—
(a) on double line, by the taking 'OFF' of the last Stop signal, and on single line either—
(i) by a token for the block section, extracted from the electric block instrument, or
(ii) by taking 'OFF' of the last Stop signal where either token less electric block instrument or axle counters or continuous track circuits are provided;
(b) by a line clear ticket—
(i) conveyed or transmitted on secured means of communication in accordance with special instructions.
(ii) delivered by hand after it is signed and stamped by Station Master on duty.
(2) (a) The line clear ticket (Form No. 2) whether conveyed or transmitted as text or delivered by hand shall, except under special instructions, be prepared in the form 2 separately for Up and Down directions—
(b) Each such ticket shall further bear a serial number which shall be recorded in the train signal register, the numbers for the Down direction being clearly distinguished from those for the Up direction for each of the section in accordance with the special instructions.
(c) Each such ticket shall be printed on white paper with blue font. To distinguish paper line clear ticket for up and down directions, water mark arrow pointing "UP" and "DOWN" shall be printed on the ticket.