Code Administration

Distribution Code Administrator

The Energy Networks Association (ENA) as Code Administrator for the Distribution Code is the point of contact for users to find out information about that code, including how to become a party to the code (if appropriate) and the rules on modifying the code. The ENA has committed to operating their code administration functions in accordance with a Code Administration Code of Practice (CACoP).

If you would like to know more about Code administration, and/or would like to comment on the content or use of the CACoP please contact –

If you would like to be notified about Distribution Code or Qualifying Standards updates and Distribution Code related public consultations, please click here.

Critical Friend

What is a Critical Friend?

Code Administrators, as part of their role, act as Critical Friends to code users. The role of the Critical Friend is described in CACoP as a Code Administrator who provides support to all with an interest in the code modification process and consumer representatives. The Code Administrators have identified a list of Top 5 activities they undertake as a Critical Friend.

Those top 5 activities can be found here.

Code Administrators Code of Practice (CACoP)

What is the CACoP?

As part of Ofgem’s Code Governance Review the Code Administration Code of Practice (CACoP), was established.

The CACoP is a cross energy industry code document and aims to provide consistency in the approach and level of service associated with Codes modification processes.

It contains 14 principles to facilitate convergence and transparency in code Modification processes and to help protect the interests of small market participants and consumers through various means including increased use of plain English in Change Reports.

What are the principles?

The 14 CACoP principles are summarised below:

  1. Code Administrators shall be critical friends;
  2. Documentation published by Code Administrators shall be in clear English;
  3. Information will be promptly and publicly available to users;
  4. The Code Administration Code of Practice will be reviewed periodically and subject to amendment by users;
  5. Code Administrators shall support processes which enable users to access a ‘pre-Modification’ process to discuss and develop Modifications;
  6. A proposer of a Modification will retain ownership of the detail of their solution;
  7. Code Administrators will facilitate alternative solutions to issues being developed to the same degree as an original solution;
  8. Estimates of implementation costs to central systems will be produced and consulted upon prior to a Modification being recommended for approval;
  9. Legal text will be produced and consulted upon prior to a Modification being recommended for approval;
  10. Modifications will be consulted upon and easily accessible to users, who will be given reasonable time to respond;
  11. There will be flexibility for implementation, to allow proportionate delivery times and realisation of benefits;
  12. The Code Administrator will annually report on Key Performance Indicators;
  13. Code Administrators will ensure cross Code coordination to progress changes efficiently where modifications impact multiple Codes; and
  14. Code Administrators shall support prospective energy innovators.

The Energy Networks Association as Code Administrator for the Distribution Code must comply with the principles set out in the CACoP. The CACoP document is available to download on the Ofgem website.

If you have any comments or suggestions for improvements with regards to the CACoP, please email them to

Industry Codes – Contacts

The codes define the terms under which industry participants can access the electricity and gas networks. The table below lists the codes and contact details for them.

Code Type Code Administrator PhoneEmailWebsite
Balancing and Settlement Code (BSC) Electricity Elexon Ltd
Connection Use of System Code (CUSC) Electricity National Grid ESO
Distribution Code Electricity Energy Networks Association
Distribution Use of System Agreement (DCUSA) Electricity Electralink
Grid Code Electricity National Grid ESO
Master Registration Agreement Electricity Gemserv
System Operator – Transmission Operator Code (STC) Electricity National Grid ESO
Independent Gas Transporter UNC (iGT UNC)
Gas Gemserv
Supply Point Administration Agreement (SPAA) Gas Electralink
Uniform Network Code (UNC) Gas Joint Office of Gas Transporters
Smart Energy Code (SEC) Gas and Electricity SECAS 02070907755 (SECAS Helpdesk)

Central Modifications Register

In order to encourage Cross Code Engagement across the industry, please find a link below detailing the register of all Code modifications and their potential impacts on each other.

Central Modifications Register

Code Administrators Forward Work Plan

Effective from January 2017, a combined electricity and gas codes Forward Workplan has been produced.

It is split into several sections:

  • Headlines – highlighting significant projects
  • Horizon Scanning – showing pan-industry as well as individual electricity and gas horizons looking out five years and beyond. Supported by a summary of the changes proposed in the 2-5 years timescale (affected codes, next steps and links for more information)
  • More detail on significant changes
  • Code specific changes (DCode is included)

Both a pdf and an Excel version is available here.

Code Administration Joint Working Practice

This document sets out a joint working practice for code administrators to follow when progressing changes that have cross-code impacts. It underpins Principle 14 of the Code Administration Code of Practice (CACoP).