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
746 KB
12 May 2008
Defined Terms Listing
2407 KB
12 May 2008
Modification History
500 KB

Update 2.69

06 May 2008
TPD Section V - General
715 KB
06 May 2008
TPD Section G - Supply Points
1193 KB
06 May 2008
TDIIB - Relevant Transporters
124 KB
06 May 2008
Defined Terms Listing
2401 KB
06 May 2008
Modification History
497 KB

Update 2.68

02 May 2008
TPD Section B - System Use and Capacity
837 KB
02 May 2008
Modification History
494 KB

Update 2.67

24 April 2008
TPD Section S - Invoicing and Payment
450 KB
24 April 2008
TPD Section M - Supply Point Metering
551 KB
24 April 2008
TPD Section E - Daily Quantities, Imbalances and Reconciliation
491 KB
24 April 2008
TPD Section B - System Use and Capacity
834 KB
24 April 2008
TDIIC - Transitional Rules
608 KB
24 April 2008
Modification History
491 KB

Update 2.66

22 April 2008
TPD Section V - General
717 KB
22 April 2008
TPD Section J - Exit Requirements
509 KB
22 April 2008
Modification History
484 KB

Update 2.65

09 April 2008
TPD Section V - General
717 KB
09 April 2008
TPD Section M - Supply Point Metering
551 KB
09 April 2008
TPD Section B - System Use and Capacity
818 KB
09 April 2008
Defined Terms Listing
2403 KB
09 April 2008
Modification History
481 KB

Update 2.64

07 April 2008
TPD Section V - General
713 KB
07 April 2008
Modification History
478 KB

Update 2.63

02 April 2008
TPD Section V - General
714 KB
02 April 2008
Modification History
475 KB

Update 2.62

01 April 2008
OAD Section I - NTS Operational Flows
241 KB
01 April 2008
TPD Section S - Invoicing and Payment
449 KB
01 April 2008
TPD Section J - Exit Requirements
510 KB
01 April 2008
TPD Section G - Supply Points
1192 KB
01 April 2008
TPD Section E - Daily Quantities, Imbalances and Reconciliation
488 KB
01 April 2008
TPD Section B - System Use and Capacity
816 KB
01 April 2008
GTC - Interpretation
237 KB
01 April 2008
TDIIC - Transitional Rules
607 KB
01 April 2008
Defined Terms Listing
2400 KB
01 April 2008
Modification History
469 KB

Update 2.61

23 February 2008
TDIIC - Transitional Rules
324 KB
23 February 2008
Modification History
462 KB

Update 2.60

01 February 2008
TPD Section V - General
714 KB
01 February 2008
TPD Section J - Exit Requirements
515 KB
01 February 2008
TPD Section I - Entry Requirements
298 KB
01 February 2008
Defined Terms Listing
2338 KB
01 February 2008
Modification History
457 KB

Update 2.59

05 December 2007
OAD Section I - NTS Operational Flows
310 KB
05 December 2007
OAD Section H - NTS Long Term Demand Forecasting
262 KB
05 December 2007
TPD Section V - General
723 KB
05 December 2007
TPD Section U - UK Link
466 KB
05 December 2007
TPD Section S - Invoicing and Payment
450 KB
05 December 2007
TPD Section R - Storage
250 KB
05 December 2007
TPD Section Q - Emergencies
374 KB
05 December 2007
TPD Section M - Supply Point Metering
552 KB
05 December 2007
TPD Section J - Exit Requirements
515 KB
05 December 2007
TPD Section H - Demand Estimation and Demand Forecasting
279 KB
05 December 2007
TPD Section G - Supply Points
1303 KB
05 December 2007
TPD Section E - Daily Quantities, Imbalances and Reconciliation
490 KB
05 December 2007
TPD Section B - System Use and Capacity
828 KB
05 December 2007
TPD Section A - System Classification
167 KB
05 December 2007
GTC - Interpretation
227 KB
05 December 2007
TDIIC - Transitional Rules
318 KB
05 December 2007
Modification History
450 KB

Update 2.58

30 November 2007
TPD Section G - Supply Points
1306 KB
30 November 2007
Modification History
447 KB

Update 2.57

23 November 2007
TPD Section V - General
727 KB
23 November 2007
TPD Section J - Exit Requirements
515 KB
23 November 2007
Defined Terms Listing
2337 KB
23 November 2007
Modification History
444 KB

Update 2.56

01 November 2007
TPD Section Q - Emergencies
375 KB
01 November 2007
TPD Section D - Operational Balancing and Trading Arrangements
293 KB
01 November 2007
Modification History
439 KB

Update 2.55

31 October 2007
Modification History
172 KB

Update 2.54

29 October 2007
TPD Section V - General
727 KB
29 October 2007
Modification History
433 KB

Update 2.53

23 October 2007
TPD Section V - General
714 KB
23 October 2007
TPD Section B - System Use and Capacity
829 KB
23 October 2007
Defined Terms Listing
981 KB
23 October 2007
Modification History
428 KB

Update 2.52

22 October 2007
OAD Section K - LDZ System Entry Points
166 KB
22 October 2007
TPD Section V - General
709 KB
22 October 2007
TPD Section Q - Emergencies
379 KB
22 October 2007
TPD Section D - Operational Balancing and Trading Arrangements
296 KB
22 October 2007
TPD Section B - System Use and Capacity
828 KB
22 October 2007
Modification History
423 KB

Update 2.51

12 October 2007
TPD Section S - Invoicing and Payment
263 KB
12 October 2007
TPD Section E - Daily Quantities, Imbalances and Reconciliation
350 KB
12 October 2007
GTC - Interpretation
236 KB
12 October 2007
Modification History
419 KB

Update 2.50

05 October 2007
TPD Section X - Energy Balancing Credit Management
325 KB
05 October 2007
Modification History
416 KB

Update 2.49

01 October 2007
TPD Section V - General
709 KB
01 October 2007
TPD Section I - Entry Requirements
295 KB
01 October 2007
TPD Section B - System Use and Capacity
828 KB
01 October 2007
Modification History
413 KB
01 October 2007
Defined Terms Listing
2317 KB

Update 2.48

19 September 2007
TPD Section E - Daily Quantities, Imbalances and Reconciliation
349 KB
19 September 2007
Modification History
159 KB

Update 2.47

11 September 2007
TPD Section V - General
544 KB
11 September 2007
Modification History
157 KB

Update 2.46

07 September 2007
TDIIC - Transitional Rules
158 KB
07 September 2007
Modification History
156 KB
07 September 2007
Defined Terms Listing
976 KB

Update 2.45

01 September 2007
TPD Section B - System Use and Capacity
829 KB
01 September 2007
Modification History
396 KB

Update 2.44

29 August 2007
TPD Section E - Daily Quantities, Imbalances and Reconciliation
486 KB
29 August 2007
Modification History
391 KB

Update 2.43

23 August 2007
TPD Section V - General
493 KB
23 August 2007
Modification History
151 KB

Update 2.42

21 August 2007
Modification History
149 KB

Update 2.41

25 June 2007
TPD Section O - System Planning
157 KB
25 June 2007
TPD Section B - System Use and Capacity
832 KB
25 June 2007
Modification History
381 KB

Update 2.40

01 June 2007
TPD Section B - System Use and Capacity
831 KB
01 June 2007
Modification History
376 KB

Update 2.39

16 May 2007
TPD Section G - Supply Points
932 KB
16 May 2007
Modification History
144 KB

Update 2.38

01 May 2007
TPD Section V - General
493 KB
01 May 2007
Modification History
143 KB

Update 2.37

23 April 2007
TPD Section V - General
658 KB
23 April 2007
Modification History
366 KB

Update 2.36

16 April 2007
OAD Section I - NTS Operational Flows
312 KB
16 April 2007
OAD Section H - NTS Long Term Demand Forecasting
263 KB
16 April 2007
TPD Section V - General
658 KB
16 April 2007
TPD Section U - UK Link
468 KB
16 April 2007
TPD Section S - Invoicing and Payment
450 KB
16 April 2007
TPD Section R - Storage
259 KB
16 April 2007
TPD Section Q - Emergencies
374 KB
16 April 2007
TPD Section M - Supply Point Metering
552 KB
16 April 2007
TPD Section J - Exit Requirements
512 KB
16 April 2007
TPD Section H - Demand Estimation and Demand Forecasting
280 KB
16 April 2007
TPD Section G - Supply Points
1302 KB
16 April 2007
TPD Section E - Daily Quantities, Imbalances and Reconciliation
486 KB
16 April 2007
TPD Section B - System Use and Capacity
831 KB
16 April 2007
TPD Section A - System Classification
170 KB
16 April 2007
GTC - Interpretation
234 KB
16 April 2007
TDIIC - Transitional Rules
178 KB
16 April 2007
Modification History
363 KB

Update 2.35

03 April 2007
TPD Section V - General
657 KB
03 April 2007
TPD Section B - System Use and Capacity
830 KB
03 April 2007
Modification History
358 KB
03 April 2007
Defined Terms Listing
2273 KB

Update 2.34

01 April 2007
TPD Section G - Supply Points
1287 KB
01 April 2007
Modification History
355 KB

Update 2.33

19 March 2007
OAD Section I - NTS Operational Flows
310 KB
19 March 2007
TPD Section J - Exit Requirements
511 KB
19 March 2007
TPD Section G - Supply Points
1230 KB
19 March 2007
TPD Section B - System Use and Capacity
827 KB
19 March 2007
TDIIC - Transitional Rules
177 KB
19 March 2007
Modification History
352 KB

Update 2.32

15 March 2007
TPD Section M - Supply Point Metering
553 KB
15 March 2007
Modification History
349 KB

Update 2.31

23 February 2007
TPD Section M - Supply Point Metering
552 KB
23 February 2007
TPD Section G - Supply Points
1207 KB
23 February 2007
Modification History
346 KB

Update 2.30

01 February 2007
TPD Section V - General
658 KB
01 February 2007
TPD Section F - System Clearing, Balancing Charges and Neutrality
277 KB
01 February 2007
Modification History
341 KB

Update 2.29

30 January 2007
TPD Section V - General
657 KB
30 January 2007
Modification History
336 KB

Update 2.28

18 January 2007
TDIIC - Transitional Rules
175 KB
18 January 2007
Modification History
333 KB
18 January 2007
Defined Terms Listing
2271 KB

Update 2.27

20 December 2006
TPD Section V - General
655 KB
20 December 2006
Modification History
329 KB
20 December 2006
Defined Terms Listing
241 KB

Update 2.26

04 December 2006
OAD Section I - NTS Operational Flows
307 KB
04 December 2006
TPD Section J - Exit Requirements
510 KB
04 December 2006
Modification History
326 KB
04 December 2006
Defined Terms Listing
2263 KB

Update 2.25

01 December 2006
OAD Section I - NTS Operational Flows
308 KB
01 December 2006
TPD Section J - Exit Requirements
509 KB
01 December 2006
Modification History
321 KB

Update 2.24

27 November 2006
TPD Section X - Energy Balancing Credit Management
323 KB
27 November 2006
TPD Section V - General
654 KB
27 November 2006
TPD Section U - UK Link
466 KB
27 November 2006
TPD Section Q - Emergencies
373 KB
27 November 2006
Modification History
318 KB
27 November 2006
Defined Terms Listing
2270 KB

Update 2.23

16 November 2006
Modification Rules
500 KB
16 November 2006
Modification History
306 KB
16 November 2006
Defined Terms Listing
2267 KB

Update 2.22

13 November 2006
Modification History
303 KB

Update 2.21

10 November 2006
Modification Rules
511 KB
10 November 2006
Modification History
299 KB

Update 2.20

06 November 2006
OAD Section I - NTS Operational Flows
308 KB
06 November 2006
TPD Section J - Exit Requirements
508 KB
06 November 2006