Skip to contents

Amendments 

Our decision letters for proposed changes to this code are contained in the table below. 



DateTitle (Click for more document information)
17/01/2012Connection and Use of System Code (CUSC) CMP198: Ownership of CUSC modification proposals
16/01/2012Connection and Use of System Code (CUSC) CAP189: Standard Gas Insulated Switchgear (GIS) Ownership Boundaries
15/12/2011Connection and Use of System Code (CUSC) CMP197: Amendment to Qualifying Guarantor
15/12/2011Connection and Use of System Code (CUSC) CMP199: Reactive Despatch Network Restrictions
13/12/2011Connection and Use of System Code (CUSC) CAP190: Two-thirds Majority voting requirement for CUSC Panel recommendations on Amendments arising from licence obligations, Authority requests or obligations
18/11/2011Connection and Use of System Code (CUSC) CMP195: Code Governance Review post implementation clarifications
15/11/2011Connection and Use of System Code (CUSC) CMP191: National Electricity Transmission System Operator (NETSO) Consultation in relation to any potential changes to the CUSC which takes place in forums other than the CUSC Modifications Panel
15/09/2011Connection and Use of System Code (CUSC) CMP196: Revisions to "recommendations" in the final CUSC Modification Report
17/01/2011Connection and Use of System Code (CUSC) CAP179 Prevention of Timing Out of Authority Decisions on Amendment Proposals
14/12/2010Connection and Use of System Code (CUSC) CAP183 Code Governance Review: Significant Code Review
14/12/2010Connection and Use of System Code (CUSC) CAP184 Code Governance Review: Self-governance
14/12/2010Connection and Use of System Code (CUSC) CAP185 Code Governance Review: Role of Code Administrator and Code Administration Code of Practice
14/12/2010Connection and Use of System Code (CUSC) CAP188 Code Governance Review: Governance of Charging Methodologies
05/11/2010Connection and Use of System Code (CUSC) CAP170: System to generator operational intertripping scheme
19/10/2010CAP186 Governance Review: Send Back Process
19/10/2010CAP187 Code Governance Review: Environmental Assessment and the Relevant Objectives
16/06/2010CAP180 Amendments to the Connection and Use of System Code (CUSC) Governance Process
27/01/2010CAP175 Urgent Amendment Proposals - revisions to process
27/01/2010CAP176 Correction of errors contained in the Connection and Use of System Code (CUSC) provisions for post-implementation reviews for Urgent Amendment Proposals
27/01/2010CAP177 Removal of Connection and Use of System Code (CUSC) Amendments Panel's ability to raise Amendment Proposals
08/01/2010CAP178 Connection and Use of System Code (CUSC) Amendment to the process for the approval of CUSC Amendment Panel meeting minutes when a CUSC Amendment Panel meeting has been cancelled
21/12/2009CAP169 Provision of Reactive Power from Power Park Modules, Large Power Stations and Embedded Power Stations
19/11/2009CAP173 Reactive Power Market Tender Process
19/11/2009CAP174 Amendment to Exhibit B to require provision of location of proposed Offshore Connection Site
02/04/2009Open letter to Connection and Use of System Code (CUSC) Panel regarding decision on CAP171
13/10/2008CAP131 User Commitment for New and Existing Generators
14/08/2008CAP160 Improvements to the assessment of Amendments
13/06/2008CAP144 Emergency Instruction to emergency de-energise
01/05/2008CAP150 Capacity Reduction
23/04/2008Connection and Use of System Code (CUSC) Amendment Proposal CAP149: Transmission Entry Capacity with Restricted Rights Decision Notice
- (Reference number: 48/08)
26/02/2008CAP159 Arrangements fpr CUSC Mid-Term elections
31/01/2008CAP157 Extension of Qualified Company Definition
31/01/2008CAP152-CAP155 Exhibit B, D, F and I Revisions WGAAs
25/01/2008CAP151 Construction Agreements Works Register
14/01/2008CAP158 Provision of Interim Response Volume Information
12/12/2007CAP146 Responsibilities and liabilities associated with Third Party Works and Modifications made by Modification Affected Users
12/11/2007CAP156 Reactive Power Default Payment Rate - Use of Spectron Power Index
22/10/2007Cap144: 'Minded To' Letter
11/10/2007CAP143 Interim Transmission Entry Capacity ("ITEC") product
10/09/2007CAP141 Clarification of the Content of a Response to a Request for a Statement of Works
12/06/2007CAP145 Embedded Generator MW Register
08/06/2007CAP142 Temporary TEC Exchanges
24/05/2007CAP140 Change to BSC Party Obligation
17/05/2007CAP127: Calculation and Securing the Value at Risk (VaR)
18/04/2007CAP126 Clarification of the Applicability and Definition of Qualifying Guarantee and Independent Security
17/04/2007Open Letter regarding CAP147
01/02/2007CAP128: Removal of Section 10 - Transitional Issues
10/01/2007CAP125 Revisions Resulting from Interconnector Separation
09/01/2007CAP129 Removal of section B from Exhibit F and amend 6.17
21/12/2006CAP130 CUSC Connection Application Form - Fixed and Variable Application Fees
10/11/2006CAP132-139 Housekeeping Amendment
07/09/2006CAP124 - Clarification of the withholding of payments for operational intertrips
14/06/2006CAP097 - Revisions to the contractual requirements for small and medium embedded power stations under 6.5
02/06/2006CAP119 - Clarification and Correction to the table of Users Credit Allowances
24/03/2006CAP 113 - 118 - Amendments to the CUSC - Various Housekeeping Amendments
22/02/2006CAP094 - Limited Duration Transmission Entry Capacity
13/02/2006CAP092 - Consistent generation use of system charge liability provisions for transmission access products
10/02/2006CAP106 - Amendment to revised paragraph 4.5.1 (Indexation Application) of the CUSC
01/02/2006CAP104 - Amendment to system to generator inter-trip related terms concurrently defined in the Grid Code and CUSC
31/01/2006CAP108-112 - CUSC Housekeeping Proposed Amendment
31/01/2006CAP108-112 - CUSC Housekeeping Proposed Amendment
19/01/2006CAP093 - Enabling the Flow of Electricity from Distribution Systems into the Transmission System at Grid Supply Points
22/12/2005CAP100/101 - Revision of CUSC Provisions to ensure that Amendment Reports contain collective CUSC Panel Recommendation, Removal of the Amendments Panel Chairman's Casting Vote - In the context of Amendments Panel Recommendation Vote
22/12/2005CAP103 - Flexibility of Working Group Internal Procedures
19/12/2005CAP089 Maximum Unsecured Credit Limit, CAP090 Credit Limits for Rated Companies, CAP091 Establishment and Maintenance of an Unsecured Credit Allowance for Rated 'quot;amp; Unrated Companies
07/12/2005CAP099 - Incorporation of additional credit management tools within the CUSC in line with current best practice
07/12/2005CAP105 - National Grids name change
14/10/2005CAP095 - Removal of Operational Day Reference from Ex Post Publication of Response Information
30/09/2005CAP088 - Application of Late Payment of Commercial Debts (Interest) Act 1998.
18/08/2005CAP086 - Proposal for Earlier Consideration of Implementation Dates
04/08/2005CAP 085 - Revised Treatment of Housekeeping Amendments
- (Reference number: 182/05)
15/07/2005CAP087 - Revisions to Request for Urgency Process
10/06/2005CAP076: Treatment of system generator intertripping schemes.
01/06/2005CAP079: CUSC Section 10: Transitional Issues - Contents.
01/06/2005CAP080: CUSC Paragraph 5.10 - Correction of spelling error.
01/06/2005CAP081: CUSC Exhibit F - Amendment to the notes.
01/06/2005CAP082: CUSC - Correction to definition of mandatory ancillary services.
01/06/2005CAP083: CUSC: Amendment to definition of NGC in section 11.
01/06/2005CAP084: CUSC: Table of contents document and CUSC section 1 -Applicability of sections and related agreements.