2023
Letter No.	Date				Subject
2020/Sig/31/Misc/24/Precautions	17.10.2023				Winter and Fog precautions for Signalling System.
2023/Sig/17-SigEquip/Maintenance	24.08.2023				Signalling gears description writing and painting
2020/Sig/IRISET	08.08.2023				Competency in carrying out Signalling Modification/Alteration works.
2021/Sig/21/Safety Performance	28.06.2023				Verification of Indoor and Outdoor writing work details of Signalling gears at stations.
2022/Sig/33/1/SEM/Misc.	20.06.2023				CS no. 2 of India Railway Signalling Engineering Manual (July 2021 Edition)
2021/Sig/21/Safety Performance	10.06.2023				Joint Procedure Order Disconnection/reconnection for S&T gears.
2020/Sig/21/Safety Performance	10.06.2023				Issues related with Safety of Signalling.
2017/Sig/WP/Works Progress/1	18.05.2023				Gazette Notification for exemption in ‘The Railway Act 1989 Dispensation of CRS sanction for identified Signalling works`.
2020/Sig/21/Safety Performance	17.05.2023				Instruction for safe working in Relay Room at Stations Cabins.
2020/Sig/SGF/7	30.03.2023				Proposed criteria for indigenous development of Software embedded system except systems having cab mounted equipments.
2022
2020/Sig/31/Misc/24/Precautions	19.10.2022				Winter and fog Precautions for Signalling Systems.
2020/Sig/31/Misc/24/Precaution	06.04.2022				Summer & Monsoon Precautions for Signalling Systems
2022/Sig/CoE	27.06.2022				Role & Responsibilities of Center of Excellence (CoE)
2022/Sig/19-FRPCPY/12	15.07.2022				Signalling Assets & FRPCPY methodology.
2020/Sig/17/Procurement	27.07.2022				Procurement Policy of S&T items for projects.
2012/Sig/S&T/Shield	20.09.2022				Revised Criteria for selection of Best Zone for S&T Efficiency Shield.
2017/Sig/WP Progress/1	23.11.2022				Works to be sanctioned within the Railway powers.
E(MPP)2021/1/16	28.12.2022				Norms/yardstick for Non-gazetted Group C Signalling staff.
2021
2020/Sig/12-SFTYMTR/1/CCRS/CRS	11.01.2021				Restrictions imposed by CRS/WC/CCG in replacements works.
2019/Sig/17/36/ETCS L-2	19.02.2021				Associate membership of EULYNX by RDSO.
2020
201/Sig/Safety Performance	07.01.2020				Disconnection Memo.
2019/Sig/25-Conf/1	14.01.2020				Proceedings of Performance  Review Meeting of CRB & Board  Members with all  GMs & DRMs through Video Conference (VC) on 24.12.2019
2019/Sig/33/1/SEM-II/Misc	30.01.2020				Revision / Re-issue of  IRSEM Pt I & Pt II.
2020/Sig/IMPRINT	17.02.2020				Impacting Research Innovation and Technology (IMPRINT)
2015/Sig/SF/1	24.02.2020				Asset Performance
2020/Sig/IMPRINT	11.03.2020				Impacting Research Innovation and Technology (IMPRINT)
2017/Sig/Moderzation/ Signalling	16.03.2020				Design & Development of Artificial Intelligence Powered Systems to improve RAMS functionality of S&T system
2019/Sig/33/1 SEM-II/Misc	21.04.2020				Nomination of Sub Committees for Revision / Re-issue of IRSEM Pt- I & Pt-II
2012/Sig/SGF/7/Pt (e-3080586)	28.04.2020				Cross Acceptance/ Approval policy
2019/Sig/26-A/SCR/04	01.05.2020				Route Release by passage of train- SEM Pt- II para 21.5.8
2020/Sig/IMPRINT	19.05.2020				IMPRINT for Indian Railways
2020/Sig/13-CDR/10/OHD	12.06.2020				Open House Discussions with S&T Field Supervisors, Maintainers and Assistant (S&T) over all Zonal Railways
2019/Sig/33/1/SEM-II/Misc	12.06.2020				Co-opting of following officers for reviewing and updating of IRSEM
2020/Sig/31/Misc/24/Precautions	16.06.2020				Monsoon Precautions for Signalling Systems
2020/Sig/RDSO/EOI	24.06.2020				Calling of Expression of Interest by  RDSO for various Signalling items
RDSO-TELE0LKO(SPEC) /6/2020-TelecomDirectorate /RDSO	21.07.2020				Revision of RDSO Specification
2020/Sig/3-WP/6/2020-21	21.08.2020				Development of IOT based Condition Monitoring and Predictive Maintenance platform for Indian Railways
2020/Sig/WP/RE Works	18.09.2020				Elimination of balance Mechanical Signalling installations on IR
2019
2016/Sig/WS	04.04.2019				Minutes of Audio Conference held on 01.04.2019 by AM/Signal with CWM’s OF Signal Production Units in connection with Modernization of S&T Workshops.
2004/Sig/W/5	27.05.2019				Provision of Automatic Fire Detection and Alarm System.
2017/Sig/SEM-II/Misc.	29.05.2019				Joint Procedure Order to be followed in cases of infringement of minimum distance between OHE mast and Signal post.
2012/Sig/M/7/Gen(D AC)	17.07.2019				Procurement of Signalling items against works contract from RDSO approved vendor list
2011/Sig/RHS/AT	01.08.2019				Location of Signals-Provision in SEM
2017/Sig/Modernization/Signalling	21.08.2019				Development of common protocol for various software based railway equipments-projects for Research
2015/Sig/A/Fire	09.09.2019				Provision of Automatic Fire Detention and alarm system
2016/Sig/Board Meeting	12.09.2019				Strategy/action plan for achieving operating ratio of 95%/90% in 2019-20
2017/Sig/SEM-II/Misc	12.09.2019				Condonation of Signal Locations having less spacing between OHE structure and Signal Post
2019/Sig/34/GR/1	25.09.2019				Provision of intermediate Block Hut in Signal Line Section
2016/Sig/Board Meeting	03.10.2019				Strategy action plan for  achieving operation ratio of 95%90% in 2019-20
2015/Sig/SF/Punctuality	11.10.2019				Reliability Improvement Measures
2016/Sig/Winter Precautions/1	28.10.2019				Winter and Fog precautions for Signaling Systems.
2012/Sig/PRIME/1	29.10.2019				Plan for Reliability Improvement and Maintennce Effectiveness Targets.
2015/Sig/SF/1	07.11.2019				ONE Page Report (OPR)of Signalling and Interlocking Failures.
2013Sig/SF/1/NI	11.11.2019				Speed of train during Non- Interlocking working.
2012/Sig/PCDO/Misc	26.11.2019				Submission of BPAC position.
2019/AM(Sig)/Insp. Note/2	29.11.2019				Recorded Note of AM(Sig) Railway Board’s inspection of Train Management System, Mumbai Division, Central Railway on 16.11.2019.
2017/Sig Modernization	18.12.2019				Mapping of Aptitude of officers in the area Modern Signaling.
2017/Sig/WP/RE works	18.12.2019				Approval for use Podanur type TLBI with UFSBI in 25KV RE area on D&E route in Single Line section.
2014/Sig/TPWS/160KMPH/Loose	26.12.2019				Minutes of meeting held on 16.12.2019 in Railway Board inconnection with preparation of detailed Estimates for the works of raising of speed up to 160kmph on Delhi-Mumbai and Delhi –Kolkata routes
2015/Sig/E/Non-Gaz/1	30.12.2019				Open house discussion with S&T field supervisors, Maintainers & Helpers.
2013/Sig/G/2/RDSO	30.12.2019				Agenda Item for Maintenance Study Group Meeting (MSG).
2018
2013/Sig/SF/1/NI	19.04.2018				Proposal for improved train operation during non-interlock working.
2017/SIG/WO/Misc.	10.05.2018				Interlocking of Manned level crossing with high TVUs.
2018/Sig/31/11-REMatters/1	13.11.2018				Assistance required for faster execution of S&T Works
2012/Sig/PCDO/Misc.	25.06.2018				Submission of PCDO to Board (DG/S&T) latest of 5th of every Month.
2012/Sig/SF/2(Policy)	14.09.2018				Commissioning of New Works.
2012/Sig./PCDO/Misc.	25.10.2018				Discontinuation of hard copy of few Monthly/Quarterly positions being sent to Railway Board (DG/S&T).
2011/Sig/E-Gaz/1	13.11.2018				Inclusion of requirement of officers and staff in RVNL on deputation in the assessment of vacancy of selection/requirement being made by zonal railways.
2018/Sig/31/11-REMatters/1	13.11.2018				Assistance required for Faster execution of S&T Works.
2017/Sig/WP/RE Works	20.11.2018				Execution of S&T Works in RE Areas.
2017/Sig/Misc.	18.12.2018				Up-gradation of Signaling and Interlocking on HDN/HUN Routes.
2016/Sig/1/SMMS	28.12.2018				Signaling Maintenance Management System.
2017
2016/Sig/Safety/Perf/Safety Rev.(2-27.10.16)	05.01.2017				Special safety review and Safety audit of Zonal Railways-deficiencies observed during the Audit.
2003/Sig/SEM/3 (Pt)	02.02.2017				Increasing of speed of passenger trains to 200Kmph.
2012/Sig/Safety Performance/1(Pt)	13.02.2017				Safety in train operation.
2014/Sig/SGF/SF/ Summer Precautions	10.03.2017				Summer Precautions.
2012/Sig/PRIME/1	14.03.2017				Revised Targets for year 2017-18 of Plan for Reliability Improvement and Maintenance Effectiveness (PRIME) annexure in PCDO.
2015/Sig/Vision 2030	29.03.2017				Safety Plan- Indian Railway’s Short Term and Long Term Safety Plan.
2014/Sig/PMO	12.04.2017				Workshop on Adaption & Sustainability of Modern Technologies in Railway Signalling-Foucs on Skill Development & make in India.
2006/SIG/Roll Diagram	13.04.2017				Inclusion of details of various assets in System Map.
2013/Sig/Safety/1 (CRS)	24.04.2017				Replacement of old Signal Gears.
2015/Sig/Air Conditioning	01.05.2017				Provision of Air Conditioning for Signal Installations.
2017/Sig/NR/1	04.05.2017				Completion of Indian Railways Book and Annual Reports & Accounts for 2016-17.
2017/Sig/2/Double Distant Aspect.	05.05.2017				Display of Top Yellow in case of blanking of Bottom Yellow (Caution Aspect) for Inner distant signal in double distant signal.
2014/Sig/Std.Comm/Rly..	12.05.2015				Standing Committee on finance on Demand for grants 2016-17 recommendations on widening tax base to reach a reasonable tax –GDP ratio.
2015/Sig/SF/Monsoon Precautions	17.05.2017				Monsoon Precautions for Signalling Systems.
2017/AM (Sig)/KRCL/1	02.06.2017				S&T Incidents affecting punctuality of Trains.
2016/Sig/WS	07.06.2017				CSTEs and CWMs / Officers In-charge meeting of Signal Production Units (SPU)/Workshops.
2016/SIG/Board’s Meeting	14.06.2017				Board’s Safety Review Video Conference with GMs of Zonal Railways and CMD/KRCL.
2015/Sig/Air Conditioning	16.06.2017				Provision of Air Conditioning for Signalling installation.
2007/SIG/Non-Gaz/1/Norm.	19.06.2017				Long duration Signalling Failures in Railways.
2012/Sig/PRIME/1	22.06.2017				Information regarding total populations to be done in PRIME Vs completed.
2015/sig/WG/Standardize layout.	12.07.2017				Audit Profile of Signal Directorate and also of Telecom Directorate.
2016/Sig/Safety/1(CRS)	24.07.2017				Replacement of Old Signal Gears.
2014/Sig/W/5.	31.07.2017				Minutes of Special Board Meeting held on 11.07.2017.
2014/Sig/High Speed.	31.07.2017				Running of ‘Tejas’ trains on Konkan Railway Routes.
2015/Sig/Budget/Task Force.	03.08.2017				Report of the Task force on Safety Reg.
2017/Sig/WP/Double Dist.	22.08.2017				Provision of second Distant Signal on ‘B’ Route.
2017/Sig/WP/Double Dist.	29.08.2017				Provision of second Distant Signal on ‘B’ Route.
2016/SIG/WS.	31.08.2017				Provision of ERP system for 6 Signal Production Units (SPUs) located at Byculla, Podnur, Mettuguda, Ghaziabad, Gorakhpur and Howrah.
2017/Sig/PCDO/Misc.	12.09.2017				MTTR, MTBF & FRPCPY of SSDAC &, MSDAC & HASSDAC.
2013/Sig/Specification	14.11.2017				Provision of Fire Suppression System
2015/SIG/SF/1	04.12.2017				Increase in Signal incidences.
2013/Sig/A/A&Rs	13.12.2017				Accidents due to negligence of S&T Staff.
2016
2003/SIG/G/5	28.04.2016				Policy on Type of Interlocking to be adopted at stations provided with Centralized operation of Points and Signals
2014/Sig/SF/Summer Precautions	03.05.2016				Summer and Pre-Monsoon Precautions.
2016/Sig/SF/Monsoon Precautions	12.05.2016				Monsoon Precautions for Signalling systems.
2015/Sig/A/Fire/Pt.	22.08.2016				Joint Safety checks to prevent Drive-Fire hazard in S&T Service buildings.
2016/Sig/Winter precautions/01	18.10.2016				Winter and Fog precautions for Signaling System.
2015/Sig/A/Fire/Pt.	27.10.2016				Fire hazard in S&T Service Building- prevention thereof.
2008/Sig/G/4	11.11.2016				Regarding Locking of Advanced Starter Signal and Starter Signal.
2016/Sig/.IBS	29.11.2016				Provision of IBS on Single Line Sections
2015
2015/Sig/SEM Pt.I/Para 7.131.	13.01.2015				Increasing the speed of Passenger Train consisting of 13nos. BG high capacity AC EOG Double Decker Chair Car Coaches (Width 3050 mm) fitted with pneumatic suspension at the secondary stage on fiat bogies and 2 Nos. of BG LHB Generator Van hauled by signal WDP4B/WAP 5/WAP 4 class of Locomotive on Mumbai Central – Ahemdabad - Mumbai Central section of Western Railway from existing maximum 120 Kmph to130 Kmph (increase from 120Kmph to 130 Kmphn VR-BRC and 110 Kmph to 130 Kmph on BRC-ADI Section) on track maintained to C&M Vol.I standard.
2001/Sig/SGF/12(LED)Pt.	21.01.2015				Failure of Route Signal leading to unusual situation.
2012/Sig/E Non Gaz/1	09.03.2015				Safety of Personnel during maintenance and /or construction work.
2015/Train Punctuality/MR,s Action Plan	01.04.2015				Punctuality and asset failure
2014/Sig/SF/Summer Precautions	15.04.2015				Summer & Pre-monsoon precautions.
2014/Sig/SF/Summer Precautions	18.05.2015				Monsoon precautions for signaling system.
2013/Sig/Specifications	22.06.2015				Automatic Fire Detection and Suppression System.
2008/Sig/G/4	17.09.2015				Regarding Locking of Advanced Starter Signal and Starter Signal.
2015/Sig/PLN/Blue Print	21.09.2015				Policy for Adoption of various signaling technologies on BG Network of Indian Railways
2012/Sig/ATSS	26.11.2015				Signalling Installations at Major Junction Stations (> 100 routes).
2015/Sig/PLN/Blue Print	30.11.2015				Policy for adoption of various signalling technologies on BG network of Indian Railways
2010
2010/SIG/SEM/8/Pt.	15.09.2010				Improvement in Maintenance Practices
2010/Sig/Sem/8/Pt.	18.11.2010				Improvement on Maintenance Practices-Annual Maintenance Contract (AMC) with Original Equipment Manufacturer for S&T equipment.
2009
2002/Sig./A/Misc.			28.05.2009			Safe maintenance of Signaling System.
2008
S&T/S/334/Pt.V/1381	27.03.2008				Speed certificate for operation of 3WAG A/B/C class locomotives with T.A.O 659traction moron track maintained to other than C&M-1.Vol-I Standard.
2000/RS(G)/379/2	27.05.2008				Pre Inspection of Safety items procured from non-RDSO approved sources
98/W1/Genl/0/30-Pt.	13.08.2008				Standardization of service buildings for S&T Requirement. (Joint Engineering & S&T Circular)
2008/Sig/G/5	18.09.2008				Development/Trail of S&T System.
2003/SIG/SGF/7	18.11.2008				Indigenous Development of Signaling Equipment.
2007
2007/Sig/PCDO/REL.		19.06.2007		Reliability improvement measures for Single Section Digital Axle Counter (SSDAC) of M/S CEL Make.
SD.WAG5.11		27.11.2007		Speed certificate for operation of 3WAG A/B/C class of locomotives with T.A.O 659traction moron track maintained to other than C&M-1.Vol-I Standard.
2006
2004/Sig/SF/2/Pt.1	24.02.2006				Recommendations of task force to study the issues concerning asset failure and asset maintenance for establishing of a near ”Zero defect regime”
2002/AC-II/1/10	24.05.2006				Revised codal life of Assets.
2002/Elect(G)/150/9	09.06.2006				Air conditioning of S&T installations.
2005
2005/SIG/SEM/8	04.10.2005				Improvement in Maintenance Practices.
2005/Sig/PLG/3/Pt.	02.11.2005				Policy for Adoption of various signaling technologies on BG Network of Indian Railways.
2005/SIG/SEM/5	18.11.2005				Procedure Order for Handing Over/Taking Over of Newly Created Signalling Assets.
2005/SIG/SF/2	30.11.2005				Adoption of Direct Maintenance for reduction in Signal Failures.