(1) when a train is approaching a home signal otherwise than a terminal station, the signal may be taken 'OFF' without the train been brought to stand outside if,-
(a) when the line is clear and free of any obstruction for an adequate distance of not less than one hundred twenty meters beyond the starter signal; or from the place at which the train is required to come to stand; and
(b) all relevant points over which the train shall pass are correctly set and facing points locked including points in overlap.
(2) when a train has first been brought to stand outside the home signal, the signal may be taken 'OFF' if ,-
(a) the line is clear and free of any obstruction upto the starter signal or upto the place at which the train is required to come to stand; and
(b) all relevant points over which the train shall pass are correctly set and facing points locked.
(3) Under special instructions the adequate distance of one hundred twenty meters also called signal overlap mentioned in sub-rule (1) and (2) of the rule 70 can be dispensed with at terminal stations after imposing permanent speed restriction of twenty kilometers per hour on trains while entering the station yard or at station where complete track circuiting exists and in addition more than one home signal is provided or in sections equipped with four aspect signalling which helps loco pilot control the speed of his train much in advance.
Provided further that - where a sand hump of approved design, or a dead end of approved design has been provided for the line on which a train is to be received, they shall be deemed to be adequate substitute for the signal overlap, and
(4) The home signal shall not been taken 'OFF' for shunting purposes.
186 THE GAZETTE OF INDIA : EXTRAORDINARY [PART II—SEC. 3(i)]