- Modification raised by Indigo Pipelines on 4th March 2021
| Document | Description | Document Type | Pub Date | Author |
| IGT151 | Notice of Implementation | Adobe PDF | 28/04/2021 | Code Administrator |
| IGT151 | Final Modification Report (Post-Panel) | Adobe PDF | 28/04/2021 | Code Administrator |
| IGT151 | Final Modification Report (Pre-Panel) | Adobe PDF | 21/04/2021 | Code Administrator |
| IGT151 | Consultation Response | Adobe PDF | 21/04/2021 | Indigo Pipelines |
| IGT151 | Draft Modification Report | Adobe PDF | 26/03/2021 | Code Administrator |
| IGT151 | Modification Proposal | Adobe PDF | 04/03/2021 | Indigo Pipelines |