On your dashboard, you have the ability to "attest as exempt" to tasks pertaining to each of your state licenses, board certifications, and other registrations.
If you believe a task is not relevant to you or that you are no longer required to complete a specific task, you may mark the "attest as exempt" button for that task. Once you do so, that specific task will be moved to the "Completed" section. However, you will still be able to view it and un-attest as necessary.