SEC Version 6.1 Designated

1 November 2018

SEC version 6.1 came into effect on 1st November 2018 to implement nine Modification Proposals as part of the November 2018 SEC Release. The modifications implemented were:


The sections of the SEC affected were:

  • Section A ‘Definitions and Interpretation’
  • Section D ‘Modification Process’
  • Section F ‘Smart Metering System Requirements’
  • Section G ‘Security’
  • Section H ‘DCC Services’
  • Section J ‘Charges’
  • Section M ‘General’
  • Section X ‘Transition’
  • Appendix S ‘DCCKI Certificate Policy’
  • Appendix W ‘DCCKI Registration Authority Policies and Procedures’
  • Appendix AA ‘Threshold Anomaly Detection procedures’
  • Appendix AD ‘DCC User Interface Specification’


You can download a zip folder containing SEC v6.1 here, or download the individual sections of the SEC from the SEC and Guidance Documents page of our website. The redlined changes to these documents can be downloaded here.

If you have any questions or would like to discuss the changes to the SEC further, please contact the SEC Change Team on 020 7090 7755 or email