Ad-hoc SEC Release – MP135 implemented

23 July 2020

An updated version of the SEC came into effect on 23 July 2020 to implement MP135 ‘Correcting equivalence in Security Standards’.

What parts of the SEC were affected?

The following part of the SEC was affected:

  • Schedule G ‘Security’


Where can I access the redlining?

The redlined changes to Section G 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?

Further information can be found on the MP135 page of our website. If you have any questions, you can call us at 020 7090 7755 or email