| Letters | ||
| Circular No. | Date | Subject |
| 2022/CEDO/SR/PC-6/0 | 01.03.2024 | Corrigendum to : Addendum and Corrigendum Slip (ACS) No. 1 to Policy Circular No. 6 |
| 2022/CEDO/SR/PC-6/0 | 01.05.2023 | Policy Circular No. 6, 2023 |
| 2022/CEDO/SR/PC-6/0 | 24.03.2023 | One Time Condonation of for three different profiles of Rolling Stock |
| 2018/CEDO/SR/PC-6/0 | 20.09.2022 | Addendum and Corrigendum Slip (ACS) No. 3 to Policy Circular No. 6 |
| 2018/CEDO/SR/PC-6/0 | 28.09.2021 | Addendum and Corrigendum Slip (ACS) No. 2 to Policy Circular No. 6 |
| 2021/CEDO/PC-6/31.10.18/SECTIONALSPEED | 22.02.2021 | Procedure for Increase in Sectional Speed and Introduction of First Passenger Carrying Train at the Speed of 130 kmph |
| 2018/CEDO/SR/PC-6/0 | 12.10.2020 | Addendum and Corrigendum Slip (ACS) No.1 to Policy Circular No. 6 |
| 2019/CEDO/PC-6/31.10.18/Correspondance | 09.12.2019 | Clarification on Policy Circular No. 6 on ECoR's Letter |
| 2018/CEDO/SR/PC-6/0 | 08.02.2019 | Track Maintenance Standards for Different Train Speed Bands. |
| 2018/CEDO/SR/PC 6/JSC | 20.08.2018 | Joint Safety Certificate (JSC) |
| Source : Ministry of Railways (Railway Board) CMS Team Last Reviewed on: 09-09-2024 | ||