The Uniform Network Code

On this page you are able to access a full version of the Uniform Network Code. The current version is 2.69, as at 06 May 2008.

If you already have an up to date copy of the UNC and only require the latest set of updated files, please select the Updates link on the left of this page.

Binder 1 - General

01 January 2006
General Front Cover
55 KB
01 January 2006
Table of Contents
71 KB
06 May 2008
Defined Terms Listing
2401 KB
06 May 2008
Modification History
497 KB
01 January 2006
UNC Introduction
72 KB
01 January 2006
TD - Table of Contents
77 KB
01 January 2006
TDI - General
95 KB
01 January 2006
TDIIA - General
112 KB
06 May 2008
TDIIB - Relevant Transporters
124 KB
24 April 2008
TDIIC - Transitional Rules
608 KB
21 July 2006
TDIID - Flexibility Bidding
234 KB
01 January 2006
TDIII - Offtake Arrangements Document (inc. Part IV - Modification Rules)
125 KB
16 November 2006
Modification Rules
500 KB
01 January 2006
GTA - Dispute Resolution
192 KB
01 March 2006
GTB - General
226 KB
01 April 2008
GTC - Interpretation
237 KB

Binder 2 - Transportation Principal Document

01 January 2006
TPD Front Cover
54 KB
01 January 2006
TPD Table of Contents
99 KB
05 December 2007
Section A - System Classification
167 KB
02 May 2008
Section B - System Use and Capacity
837 KB
01 January 2006
Section C - Nominations
222 KB
01 November 2007
Section D - Operational Balancing and Trading Arrangements
293 KB
24 April 2008
Section E - Daily Quantities, Imbalances and Reconciliation
491 KB
01 February 2007
Section F - System Clearing, Balancing Charges and Neutrality
277 KB
06 May 2008
Section G - Supply Points
1193 KB
05 December 2007
Section H - Demand Estimation and Demand Forecasting
279 KB
01 February 2008
Section I - Entry Requirements
298 KB
22 April 2008
Section J - Exit Requirements
509 KB
21 July 2006
Section K - Operating Margins
243 KB
01 March 2006
Section L - Maintenance and Operational Planning
204 KB
24 April 2008
Section M - Supply Point Metering
551 KB
01 January 2006
Section N - Shrinkage
175 KB
25 June 2007
Section O - System Planning
157 KB
05 December 2007
Section Q - Emergencies
374 KB
05 December 2007
Section R - Storage
250 KB
24 April 2008
Section S - Invoicing and Payment
450 KB
05 December 2007
Section U - UK Link
466 KB
06 May 2008
Section V - General
715 KB
05 October 2007
Section X - Energy Balancing Credit Management
325 KB
21 July 2006
Section Z - National Grid LNG Storage Facilities
597 KB

Binder 3 - Offtake Arrangements Document

01 January 2006
OAD Front Cover
54 KB
01 January 2006
OAD Table of Contents
92 KB
01 January 2006
Section A - Scope and Classification
137 KB
01 January 2006
Section B - Connection Facilities
417 KB
21 July 2006
Section C - Safety and Emergency
219 KB
01 January 2006
Section D - Measurements
373 KB
01 January 2006
Section E - Telemetry, etc
398 KB
01 January 2006
Section F - Determination of Calorific Value
174 KB
01 January 2006
Section G - Maintenance
283 KB
05 December 2007
Section H - NTS Long Term Demand Forecasting
262 KB
01 April 2008
Section I - NTS Operational Flows
241 KB
01 January 2006
Section J - LDZ/LDZ Offtakes - Planning and Operational Flows
272 KB
22 October 2007
Section K - LDZ System Entry Points
166 KB
01 January 2006
Section L - Cost Recovery and Invoicing
185 KB
01 January 2006
Section M - Information Flows
139 KB
01 January 2006
Section N - General
315 KB
01 January 2006
Appendices
176 KB

Consents to Modify

07 September 2006
Consents to Modify
The Gas Transporters Licence provides, subject to Ofgem approval, for the Uniform Network Code to be modified without the need to go through the full modification process. This 'Consent to Modify' ...
 

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