Electronic Submission System

How to send documents to us securely using the Electronic Submission System (ESS).

Access the Electronic Submission System

New users: Submit an online registration request (select 'Register for System Access'). You must register on an individual basis using your corporate email address. This will be your username when logging on to the system.

How to use the portal

See our information and guides to help use the ESS:

From 3 November 2025, as a result of PS24/19 Enhancing the National Storage Mechanism, there are changes to the process for submitting documents to the NSM. See our National Storage Mechanism page for more information.

​You can also call our general administrative line on 020 7066 8348.

Multi-factor authentication

We’ve strengthened how you log into ESS to further protect and control access to our data. You now need to enter a one-time passcode each time you log in. See our resource page for more information.

More information

Submit a draft document for review and approval – information on our submission procedures
Forms and checklists – download our forms and checklists.

If you have questions, please contact us for details.

Supported internet browsers

To access the Electronic Submission System fyou will need a current or recent version of browsers such as:

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