| 01 February 2012 Transportation Principal Document (Consolidated, printable version) | 8.92 MB |
| 01 January 2006 TPD Table of Contents | 99.27 KB |
| 01 January 2006 TPD Front Cover | 54.27 KB |
| 29 April 2009 TPD Section A - System Classification | 170.05 KB |
| 01 February 2012 TPD Section B - System Use & Capacity | 1.14 MB |
| 01 November 2009 TPD Section C - Nominations | 223.31 KB |
| 01 November 2009 TPD Section D - Operational Balancing and Trading Arrangements | 294.16 KB |
| 20 December 2011 TPD Section E - Daily Quantities, Imbalances and Reconciliation | 411.81 KB |
| 23 January 2012 TPD Section F - System Clearing, Balancing Charges and Neutrality | 253.85 KB |
| 20 December 2011 TPD Section G - Supply Points | 876.06 KB |
| 03 January 2012 TPD Section H - Demand Estimation and Demand Forecasting | 385.92 KB |
| 20 December 2011 TPD Section I - Entry Requirements | 257.08 KB |
| 20 December 2011 TPD Section J - Exit Requirements | 419.28 KB |
| 01 June 2011 TPD Section K - Operating Margins | 219.54 KB |
| 01 March 2006 TPD Section L - Maintenance and Operational Planning | 203.77 KB |
| 20 December 2011 TPD Section M - Supply Point Metering | 432.28 KB |
| 23 February 2010 TPD Section N - Shrinkage | 136.82 KB |
| 25 June 2007 TPD Section O - System Planning | 157.02 KB |
| 26 April 2010 TPD Section Q - Emergencies | 374.71 KB |
| 01 November 2009 TPD Section R - Storage | 203.98 KB |
| 01 September 2011 TPD Section S - Invoicing and Payment | 272.03 KB |
| 22 January 2010 TPD Section U - UK Link | 285.75 KB |
| 23 January 2012 TPD Section V - General | 550.79 KB |
| 21 February 2011 TPD Section X - Energy Balancing Credit | 270.81 KB |
| 01 October 2011 TPD Section Y - Charging Methodologies | 1.3 MB |
| 29 April 2009 TPD Section Z - National Grid LNG Storage Facilities | 593.15 KB |
