Indian Railway Automatic Train Protection System (IR-ATP) (Kavach)

Means a radio communication-based control system, provided as an additional aid to Loco Pilots of functional Kavach fitted locomotives, in Kavach territory, the use of which shall in no way infringe or override the provisions (codes and manuals) of regular train operation required to be followed by Loco Pilot. (AS 20)

S.R. 3.26.4

In IR-ATP (Kavach) territory, whenever a new signal is installed or an existing signal is shifted/modified, the Signal Sighting Committee must inspect and certify that the line-side signal position and aspect correctly correspond with the on-board signal and its aspect shown on the DMI of an IR-ATP–fitted loco before commissioning.

A Kavach-fitted loco must be used for Signal Sighting Committee inspections at least once every quarter.

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