SEC Designation implemented

25 September 2020

An updated version of the SEC came into effect on 25 September 2020 to implement a designation by the Department for Business, Energy and Industrial Strategy (BEIS). This is to support the Data Communications Company’s (DCC’s) Smart Metering Equipment Specifications 1 (SMETS1) service and the smart metering rollout more generally.

The BEIS designation letter and accompanying annexes, including the redlined changes, can be found here.


What parts of the SEC were affected?

  • SEC Appendix AK ‘SEC Variation Testing Approach Document for SMETS1 Services’


Where can I access the redlining?

The redlined changes to these Section can be found on CodeWorks via the links below:

Our Document Log lists the versions of each SEC document now in effect following this release.

You can download the individual SEC documents from the SEC and Supporting Documents section of our website or via CodeWorks.


Where can I find further information?

If you have any questions, you can call the SECAS Helpdesk at 020 7090 7755 or email