Please note: you will need system admin access in order to remove a template.
Go to DP - Letter Templates, find the template that needs to be deleted (make sure its an NCS template) if the template is DP it will need to be removed through M3 and you will need to raise a fresh service ticket to do this.
To find out whether your template you wish to remove is NCS or DP you will be able to see this in the letter template summary page.
Remove any subtab category, document category and make sure its not being used as an applicant template.
If it is then you will need to find where, replace the template in the worksheet set up and then come back to the template. If you don't remove these you will get an error when trying to delete, once removed saved the template and find it in the list of templates again. You will be able to see a red cross to the right of the details, click this and follow instructions, once deleted the page will take you back to assure home.