SEC Version 6.0 Designated

29 October 2018

SEC v6.0 came into effect on 28th October 2018. The Secretary of State has designated amendments to SEC Appendix AB – Service Request Processing Document and SEC Appendix E – DCC User Interface Services Schedule and directed consequential changes to SEC Section A – Definitions and Interpretation and SEC Schedule 11 – TS Applicability Tables to reflect this.

You can download a zip folder containing SEC v6.0 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