If all requirements have been met and your are satisfied with the application, you can approve the permit. All traffic lights will need to be green on the left-hand panel to approve the permit.
Click the status bar at the top of the page and click "Approved":
Some councils' systems will accept the Approval immediately, while others will be set up to send documents to the contractor upon approval. For these, a popup will appear after clicking "Approved". Fill in the details and then click Save.
The status bar will now be green and read "Approved":