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List of Specification/Policy

LIST OF SPECIFICATIONS & MANUAL

SN	Specification No.	Description of Specification
1.	IRS: T-1-2021	IRS Specification for Fishplates & Fishplate Bars
2.	IRS: T-10-2025	Indian Railway Standard Specification for Fabricated Over-Riding Switches, Welded/Heat Treated Crossings. Thick web Switches(Tws), Thick Web Switch- Expansion Joints(TWSEJ), Improved Switches-Expansion Joints(ISEJ) and Switch Expansion Joints(SEJ)
3.	IRS:T-12-2009	Indian Railway Standard Specification for flat bottom Rails Reprinted: October-2021 (covering up to ACS no. 5 and Corrigendum no. 1 of ACS no. 1 & 5)
4.	IRS:T-16-2019	IRS Specification for Rail Plate Screws
5.	IRS:T-19-2021	Indian Railway Standard Specification For Fusion Welding of Rails By Alumino- Thermic Process
5.	ACS 1 of April-2024	Addendum & Corrigendum Slip No. 01 of “Indian Railway Standard Specification for Fusion Welding of Rails by Alumino-Thermic Process (IRST-19: 2021)
6.	IRS T-23:2021 (Redrafted)	Specification for Track Bolts and Nuts (Having Metric Screw threads with ISO Profile)
7.	IRS:T-28-1973	IRS Specification for High Tensile Fish Bots and Nuts
8.	IRS:T-29 (Revised-2024)	Indian Railways Standard Specification for Cast Manganese Steel (CMS) Crossings and Weldable Cast Manganese Steel (WCMS) Crossings
9.	IRS:T-31-2021	Indian Railway Standard Specification for Elastic Rail Clips (Fifth Revision) with corrigendum no. 2
10.	IRS:T-39-2021	Indian Railway Standard Specification for Pretensioned Prestressed Concrete sleepers for B.G, M.G & N.G (6th Revision March 2021)" with corrigendum no. 1
11.	IRS:T-42-2020	IRS Specification for Single Coil Spring Steel Washers for Track (Revision-01)
12.	IRS-44-2023	INDIAN RAILWAY STANDARD SPECIFICATION FOR GLASS FILLED NYLON-66 & HIGH VISCOUS NYLON-66 INSULATING LINERS (Second Revision)
13.	IRS:T-45-2021	Indian Railway Standard Specification for Pretensioned Prestressed Concrete sleepers for Turnouts B.G, M.G (4th Revision March 2021)' with corrigendum no. 2
14.	IRS:T-46-2025	Indian Railway Standard Specification for Spheroidal Graphite Cast Iron Inserts” Serial no. T-46 (4th Revision - May 2025)
15.	IRS:T-47-2020	IRS specification for Grooved Rubber Sole Plates (6mm thick) for Placing Beneath Rails (Revision-01)
16.	IRS:T-48- June 2013	Technical specifications for track Based Lubricators (Electronic & Hydraulic Type), IRS:T-48, June-2013 (Ver 2.0)
17.	IRS-T-49-2019	Technical Specification for Stationary Flash Butt Welding Plant and connected Machines & Accessories
18.	IRS:T-51	Technical Specification for Zinc Aluminium Metallisation of Rails (Feb-2020) .
19.	IRS:T-52	Indian Railway Standard Specification for Ultrasonic Testing of Rails / Welds using Vehicular Systems, Revised-2020
	ACS-01 of 2024	Addendum & Correction slip no. 1 of 2024 of 'Indian Railway Standard Specification for Ultrasonic Testing of Rails/Welds using Vehicular System, Revised -2020
	Corrigendum No. 1 to A&C Slip No. 1 of 2024	Corrigendum No. 1 to A&C Slip No. 1 of 2024 to “Indian Railway Standard Specification for Ultrasonic Testing of Rails/Welds using Vehicular Systems Revised – 2020 (Document No. IRS-T-52)”
20.	IRS:T-53	Indian Railway Standard Specification for Ultrasonic Testing of Rails / Welds, Revised - 2020
20.	ACS-1 of 2022	Addendum & Correction slip no.1 of 2022 of ‘Indian Railway Standard Specification for Ultrasonic Testing of Rails/Welds, Revised-2020
21.	IRS:T-56-2025	IRS specification for Metal Liner for use with Elastic Rail clips along with Revision No. 1
22.	IRS:T-57-2020	IRS specification for Polyethylene Dowels for concrete sleepers
23.	IRS:T-58-2020	IRS specification for Spring Steel Circlip for use with Anti-Theft Elastic Rail Clips
24.	-	Technical Specification for Improved SEJ- Provisional 2008 (Drg. No. RDSO/T-6902 to 6921) with Corrigendum No. 1 of Dec. 2016 & Corrigendum No. 2 of Jan. 2021
25.	-	Technical Specification for Improved SEJ, Provisional 2008 (Drg. no. RDSO/T-6922 to 6934) with Corrigendum No. 1 of Dec. 2016
26.	RDSO/M&C/RP-198/2006	IRS specification for Composite GRSP (6.2mm thick) for Placing Beneath Rails, (Provisional-2006) with Amendment No. 2 of 2017
27.	-	Provisional Specification for Retro-Reflective Indicators ( May 2011)
28.	-	Functional Specification for Rubberised Surface at Level Crossings
29.	IRS:T-54 (Revised-2024)	Indian Railway Standard Specification for Spring Setting Device for use with Over-riding Curved Switches and Thick Web Curved Switches
30.	-	Guidelines for procuring Stainless Steel Plate to be embedded with Rail Pad (Provisional – 2019)
31.	-	IRS Specification for Special Cast liner Provisional-2019 (First Revision -2020)
32.	-	IRS Specification for Steel Base Plate (Provisional -2019)
33.	-	IRS Specification for 6mm thick Nylon Cord Reinforced Grooved Rubber Sole Plates for placing beneath rails at turnouts (Provisional) — 2020 (Revision 1.0), Serial no. RDSO/M&C/RP-201/2020 (Revision 1.0)
34.	CT/Policy/01, Revised March 2023	Policy on Domestic Rail Plants for Symmetrical Rails of different grades
35.	No. CT/Policy/02(28.01.2022)	POLICY ON DOMESTIC RAIL PLANTS FOR ASYMMETRICAL RAILS OF DIFFERENT GRADES
36.	No. CT-35 (February-2023)	Guidelines for handling and stacking of Rails
37.	IRS:R-62-2025	Indian Railway Standard Specification for End Forging of Thick Web Asymmetrical Rails
38.	Provisional-1989	IRS specificaion for 10mm thick Grooved Rubber Pads, (Provisional-1989) with Amendment No. 3 of Oct, 2016
39.	RDSO/M&C/RP-200/2007	IRS specification for 10mm thick Composite Grooved Rubber Sole Plates for Placing Beneath Rails, (Provisional-2007) with Amendment No. 1 of 2018.
40.	T-55-2023	IRS Specification for Rail Pad for placing beneath rails, SL No. T-55-2023 with Amendment no. 01 of 2024
41.	IRS:T-44(Third Revision)	IRS Specification for Glass Filled Nylon-66 & High Viscous Nylon-66 Insulating Liners, Serial No. T-44(Third Revision)
42.	T-55-2025 (Revision-01)	IRS Specification for Rail Pads for Placing Beneath Rails Serial No. T- 55 2025(Revision-01)
43.	IRS:T-31-2025	Indian Railway Standard Specification for Elastic Rail Clips, Serial No. T-31-2025 (Sixth Revision)

Manual

S.N.	Description of Manual
1.	Manual for Fusion welding of Rails by the Alumino-Thermic Process, Revised-2022
2.	Manual for Flash Butt Welding of Rails (Reprint-April,2022) Addendum & Corrigendum Slip no. 03 Addendum & Corrigendum Slip no. 04
3.	Manual for Ultrasonic testing of Rails and Welds Revised-2022 A&C Slip No.1 of May 2023 Addendum and Corrigendum slip no.2 of February, 2025
4.	Manual for Glued Insulated Rail Joints (Revised-2024)
5.	Manual for Reconditioning of Medium Manganese (MM) Steel Points & Crossings Switch Expension Joints (SEJs) and Cast Manganese Steel (CMS) Crossings-1996 (1^st Revision, November-2020). Doc. No. CT-57
6.	Indian Railway Standard Track Manual, Revised-2024

STR

1.	TDG 0017 Ver. 4.0	Item Specific Guidelines for vendor approval / extension of approval and Schedule of Technical Requirements for manufacture & supply of Alumino Thermic (AT) Welding portions and execution of Alumino Thermic Rail joints
2.	TDG 0026, Rev.5	Item specific guidelines for hard facing electrodes for reconditioning of crossing, switches and SEJs (Revised-2020)
3.	Provisional	Item specific guidelines for zero Toe load Fastening (ZTLF)system Provisional-2019 (First Revision 2020)
4.	TDG0008 Rev.’4’	Item Specific Guidelines for Manufacture & Supply of Grooved Rubber Sole Plates
5.	TDG 0037 Rev. '0'	Item Specific Guidelines for manufacture & supply of Nylon Cord Reinforced Grooved Rubber Sole Plate
6.	TDG 0034 Rev. ‘1’	ITEM SPECIFIC GUIDELINES FOR MANUFACTURE & SUPPLY OF COMPOSITE GROOVED RUBBER SOLE PLATE
7.	TDG 0007 Ver. ‘1.0’	Item Specific Guidelines & Schedule of Technical Requirements for Manufacture & Supply of Single Coil Spring Steel Washer
8.	TDG 0005 Rev. '2'	Item Specific Guidelines & Schedule of Technical Requirements for Manufacture and Supply of Glass Filled Nylon-66 (GFN) & High Viscous Nylon-66 (HVN) Insulating Liners
9.	TDG 0043	Schedule of Technial Requirements for manufacture and supply of High Density Polyethylene Dowels for Concrete sleeper.
10	TDG0041 Rev.'0'	Schedule of Technical Requirements for manufacture and supply of Metal Liner for Use with Elastic Rail Clips
11	TDG0039 Ver. '2.0'	Schedule of Technical Requirement for manufacture and supply of SGCI Insert document no. TDG0039
12	TDG 0044 Ver. '0'	Item Specific guidelines & Schedule of Tech ical Requirements for Vendor approval for manufacture and supply of Elastic Rails Clips
13	TDG 0046	Schedule of Technical Requirement (2025) for Manufacture of PSC Sleeper
14	TDG 0022, Rev. '3'	Item Specific Guidelines & Schedule of Technical Requirements for Vendor Approval for manufacturing and supply of Improved Switch Expansion Joints
15	TDG 0038	Item Specific Guidelines & Schedule of Technical Requirements for Vendor Approval for manufacture and supply of Thick Web Switch.Thick Web Switch Expansion Joints and End Forged Thick web Asymmetric rails
16	TDG 0040 Version No. 3.0	Item Specific guidelines & Schedule of Technical Requirements for manufacture and supply of FISHPLATES AND FISHPLATE BARS
17	TDG 0009 Version No. 3.0	Item Specific Guidelines & Schedule of Technical Requirements for manufacture and supply of Glued Insulated Rail Joints
18	TDG-0013 Version 2.1	Item Specific guidelines & Schedule of Technical Requirements for manufacture and supply of HTS HEX Bolts and Nuts Size M24 x 140 MM (Doc no. TDG-0013, Version 2.1)
19	QC-G-7.1-14 Ver 1.0 (Old Ver. TDG 0014, Rev-‘0’,)	Item Specific guideline & Schedule of Technical Requirements for manufacture and supply of Glue used in fabrication of Glued Insulated Rail Joints
20	QC-G-7.1-11 Ver 1.0 (Old Ver. TDG 0011, Rev-‘0’,)	Item Specific guideline & Schedule of Technical Requirements for manufacture and supply of Fibre Glass cloth Woven Roving-360
21	TDG 0018	Item Specific Guidelines & Schedule of Technical Requirements for manufacture of Over-Riding Curved Switches.
22	TDG 0024 Version No: 2.0	Item Specific Guidelines & Schedule of Technical Requirements for Vendor Approval for manufacture and supply of Spring Setting Device
23	TDG 0021 Ver. '2'	Item Specific Guidelines & Schedule of Technical Requirements for Vendor Approval for manufacture and supply of Cast Manganese Steel (CMS) Crossings/ Weldable Cast Manganese Steel (WCMS) Crossings
24	TDG 0042 REV. ‘0’	Item Specific Guidelines & Schedule of Technical Requirements for Manufacture & Supply of Rail Pads for Placing Beneath Rails
25	TDG 0045 Version No: 0	Item Specific guidelines & Schedule of Technical Requirements for manufacture and supply of Spring Steel Rounds
26	TDG 0042 (Revision 01)	Item Specific Guidelines & Schedule of Technical Requirements for Manufacture & Supply of Rail Pads for Placing Beneath Rails
27.	TDG 0044, Ver. ‘1’	Item Specific guidelines & Schedule of Technical Requirements for Vendor approval for manufacture and supply of Elastic Rails Clips
28.	TDG 0005 Rev ‘3’	Item Specific Guidelines & Schedule of Technical Requirements for Manufacture and supply of Glass Filled Nylon-66 (GFN) & High Viscous Nylon-66 (HVN) Insulating Liners” Document No. TDG 0005 Rev ‘3’

Source : WELCOME TO RDSO CMS Team Last Reviewed on: 13-08-2025