Uniform Network Code Updates
On these pages you will find copies of all the UNC updates. Each displayed update contains only those files amended as part of the update.
For a full up to date copy of the UNC please select the 'UNC Document' option.
Update 2.70
12 May 2008
TPD Section V - General
12 May 2008
Defined Terms Listing
12 May 2008
Modification History
Update 2.69
06 May 2008
TPD Section V - General
06 May 2008
TPD Section G - Supply Points
06 May 2008
TDIIB - Relevant Transporters
06 May 2008
Defined Terms Listing
06 May 2008
Modification History
Update 2.68
02 May 2008
TPD Section B - System Use and Capacity
02 May 2008
Modification History
Update 2.67
24 April 2008
TPD Section S - Invoicing and Payment
24 April 2008
TPD Section M - Supply Point Metering
24 April 2008
TPD Section E - Daily Quantities, Imbalances and Reconciliation
24 April 2008
TPD Section B - System Use and Capacity
24 April 2008
TDIIC - Transitional Rules
24 April 2008
Modification History
Update 2.66
22 April 2008
TPD Section V - General
22 April 2008
TPD Section J - Exit Requirements
22 April 2008
Modification History
Update 2.65
09 April 2008
TPD Section V - General
09 April 2008
TPD Section M - Supply Point Metering
09 April 2008
TPD Section B - System Use and Capacity
09 April 2008
Defined Terms Listing
09 April 2008
Modification History
Update 2.64
07 April 2008
TPD Section V - General
07 April 2008
Modification History
Update 2.63
02 April 2008
TPD Section V - General
02 April 2008
Modification History
Update 2.62
01 April 2008
OAD Section I - NTS Operational Flows
01 April 2008
TPD Section S - Invoicing and Payment
01 April 2008
TPD Section J - Exit Requirements
01 April 2008
TPD Section G - Supply Points
01 April 2008
TPD Section E - Daily Quantities, Imbalances and Reconciliation
01 April 2008
TPD Section B - System Use and Capacity
01 April 2008
GTC - Interpretation
01 April 2008
TDIIC - Transitional Rules
01 April 2008
Defined Terms Listing
01 April 2008
Modification History
Update 2.61
23 February 2008
TDIIC - Transitional Rules
23 February 2008
Modification History
Update 2.60
01 February 2008
TPD Section V - General
01 February 2008
TPD Section J - Exit Requirements
01 February 2008
TPD Section I - Entry Requirements
01 February 2008
Defined Terms Listing
01 February 2008
Modification History
Update 2.59
05 December 2007
OAD Section I - NTS Operational Flows
05 December 2007
OAD Section H - NTS Long Term Demand Forecasting
05 December 2007
TPD Section V - General
05 December 2007
TPD Section U - UK Link
05 December 2007
TPD Section S - Invoicing and Payment
05 December 2007
TPD Section R - Storage
05 December 2007
TPD Section Q - Emergencies
05 December 2007
TPD Section M - Supply Point Metering
05 December 2007
TPD Section J - Exit Requirements
05 December 2007
TPD Section H - Demand Estimation and Demand Forecasting
05 December 2007
TPD Section G - Supply Points
05 December 2007
TPD Section E - Daily Quantities, Imbalances and Reconciliation
05 December 2007
TPD Section B - System Use and Capacity
05 December 2007
TPD Section A - System Classification
05 December 2007
GTC - Interpretation
05 December 2007
TDIIC - Transitional Rules
05 December 2007
Modification History
Update 2.58
30 November 2007
TPD Section G - Supply Points
30 November 2007
Modification History
Update 2.57
23 November 2007
TPD Section V - General
23 November 2007
TPD Section J - Exit Requirements
23 November 2007
Defined Terms Listing
23 November 2007
Modification History
Update 2.56
01 November 2007
TPD Section Q - Emergencies
01 November 2007
TPD Section D - Operational Balancing and Trading Arrangements
01 November 2007
Modification History
Update 2.55
31 October 2007
Modification History
Update 2.54
29 October 2007
TPD Section V - General
29 October 2007
Modification History
Update 2.53
23 October 2007
TPD Section V - General
23 October 2007
TPD Section B - System Use and Capacity
23 October 2007
Defined Terms Listing
23 October 2007
Modification History
Update 2.52
22 October 2007
OAD Section K - LDZ System Entry Points
22 October 2007
TPD Section V - General
22 October 2007
TPD Section Q - Emergencies
22 October 2007
TPD Section D - Operational Balancing and Trading Arrangements
22 October 2007
TPD Section B - System Use and Capacity
22 October 2007
Modification History
Update 2.51
12 October 2007
TPD Section S - Invoicing and Payment
12 October 2007
TPD Section E - Daily Quantities, Imbalances and Reconciliation
12 October 2007
GTC - Interpretation
12 October 2007
Modification History
Update 2.50
05 October 2007
TPD Section X - Energy Balancing Credit Management
05 October 2007
Modification History
Update 2.49
01 October 2007
TPD Section V - General
01 October 2007
TPD Section I - Entry Requirements
01 October 2007
TPD Section B - System Use and Capacity
01 October 2007
Modification History
01 October 2007
Defined Terms Listing
Update 2.48
19 September 2007
TPD Section E - Daily Quantities, Imbalances and Reconciliation
19 September 2007
Modification History
Update 2.47
11 September 2007
TPD Section V - General
11 September 2007
Modification History
Update 2.46
07 September 2007
TDIIC - Transitional Rules
07 September 2007
Modification History
07 September 2007
Defined Terms Listing
Update 2.45
01 September 2007
TPD Section B - System Use and Capacity
01 September 2007
Modification History
Update 2.44
29 August 2007
TPD Section E - Daily Quantities, Imbalances and Reconciliation
29 August 2007
Modification History
Update 2.43
23 August 2007
TPD Section V - General
23 August 2007
Modification History
Update 2.42
21 August 2007
Modification History
Update 2.41
25 June 2007
TPD Section O - System Planning
25 June 2007
TPD Section B - System Use and Capacity
25 June 2007
Modification History
Update 2.40
01 June 2007
TPD Section B - System Use and Capacity
01 June 2007
Modification History
Update 2.39
16 May 2007
TPD Section G - Supply Points
16 May 2007
Modification History
Update 2.38
01 May 2007
TPD Section V - General
01 May 2007
Modification History
Update 2.37
23 April 2007
TPD Section V - General
23 April 2007
Modification History
Update 2.36
16 April 2007
OAD Section I - NTS Operational Flows
16 April 2007
OAD Section H - NTS Long Term Demand Forecasting
16 April 2007
TPD Section V - General
16 April 2007
TPD Section U - UK Link
16 April 2007
TPD Section S - Invoicing and Payment
16 April 2007
TPD Section R - Storage
16 April 2007
TPD Section Q - Emergencies
16 April 2007
TPD Section M - Supply Point Metering
16 April 2007
TPD Section J - Exit Requirements
16 April 2007
TPD Section H - Demand Estimation and Demand Forecasting
16 April 2007
TPD Section G - Supply Points
16 April 2007
TPD Section E - Daily Quantities, Imbalances and Reconciliation
16 April 2007
TPD Section B - System Use and Capacity
16 April 2007
TPD Section A - System Classification
16 April 2007
GTC - Interpretation
16 April 2007
TDIIC - Transitional Rules
16 April 2007
Modification History
Update 2.35
03 April 2007
TPD Section V - General
03 April 2007
TPD Section B - System Use and Capacity
03 April 2007
Modification History
03 April 2007
Defined Terms Listing
Update 2.34
01 April 2007
TPD Section G - Supply Points
01 April 2007
Modification History
Update 2.33
19 March 2007
OAD Section I - NTS Operational Flows
19 March 2007
TPD Section J - Exit Requirements
19 March 2007
TPD Section G - Supply Points
19 March 2007
TPD Section B - System Use and Capacity
19 March 2007
TDIIC - Transitional Rules
19 March 2007
Modification History
Update 2.32
15 March 2007
TPD Section M - Supply Point Metering
15 March 2007
Modification History
Update 2.31
23 February 2007
TPD Section M - Supply Point Metering
23 February 2007
TPD Section G - Supply Points
23 February 2007
Modification History
Update 2.30
01 February 2007
TPD Section V - General
01 February 2007
TPD Section F - System Clearing, Balancing Charges and Neutrality
01 February 2007
Modification History
Update 2.29
30 January 2007
TPD Section V - General
30 January 2007
Modification History
Update 2.28
18 January 2007
TDIIC - Transitional Rules
18 January 2007
Modification History
18 January 2007
Defined Terms Listing
Update 2.27
20 December 2006
TPD Section V - General
20 December 2006
Modification History
20 December 2006
Defined Terms Listing
Update 2.26
04 December 2006
OAD Section I - NTS Operational Flows
04 December 2006
TPD Section J - Exit Requirements
04 December 2006
Modification History
04 December 2006
Defined Terms Listing
Update 2.25
01 December 2006
OAD Section I - NTS Operational Flows
01 December 2006
TPD Section J - Exit Requirements
01 December 2006
Modification History
Update 2.24
27 November 2006
TPD Section X - Energy Balancing Credit Management
27 November 2006
TPD Section V - General
27 November 2006
TPD Section U - UK Link
27 November 2006
TPD Section Q - Emergencies
27 November 2006
Modification History
27 November 2006
Defined Terms Listing
Update 2.23
16 November 2006
Modification Rules
16 November 2006
Modification History
16 November 2006
Defined Terms Listing
Update 2.22
13 November 2006
Modification History
Update 2.21
10 November 2006
Modification Rules
10 November 2006
Modification History
Update 2.20
06 November 2006
OAD Section I - NTS Operational Flows
06 November 2006
TPD Section J - Exit Requirements