(1) No railway servant shall interfere with any signalling equipment, including points and crossings for the purpose of effecting testing or overhauling or maintenance or repairs or for any other purpose without the prior permission of the signal inspector, or any competent railway servant appointed in this behalf by Dedicated Freight Corridor Railway administration; and the railway servant who gives such permission shall himself be present to superintend such work.
(2) No work requiring interference with signalling equipment or points and crossings shall be commenced without the prior permission of station master on duty. When it is considered necessary to disconnect any of the signalling equipment, the signal inspector or a railway servant of signal department authorised to do so, shall advise station master on duty in writing through a disconnection memo in form 1 prepared in two foils and commence work only after it has been acknowledged and permitted by station master on duty on the record copy.
(3) The disconnection memo shall clearly bring out the details of the signalling equipment to be disconnected and for which kind of train movement interlocking cover shall not be available, as also for which kind of train movement interlocking cover shall still be available, if any.
(4) Having acknowledged the dis-connection memo it shall be duty of the station master to undertake train operation for those portions where interlocking cover is not available only in the manner as is permitted under these rules during failures, unusual occurrences, accidents as per Chapter IX.
(5) After the work has been completed, the signal inspector or a railway servant of signal department authorised to do so shall ensure, after testing, that the disconnected signalling equipment reconnected are in proper working order and only thereafter, shall advise station master on duty through a second written memo prepared in two foils giving reference of the disconnection memo previously issued.
(6) Station master on duty after satisfying that the reconnected signalling equipment are in working order, shall acknowledge on the record foil of the reconnection memo. The station master on duty shall make a note of these transactions in the station diary and preserve his copy of the disconnection and reconnection memo by pasting on the opposite pages of the register kept for this purpose.
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(7) Works which do not involve any disconnection shall be determined under special instructions.