In these cases there are several things you should do. Most important is to follow the Ignition Interlock Program rules and any processes your affiliated device manufacturer has established. If you do not feel comfortable making the decision to remove a device without prior authorization, you can always contact your affiliated manufacturer or the State of Tennessee Ignition Interlock Program office.
First, check with the client to see if they have a current valid unrestricted driver license. If they do, you can remove the device. A lot of times clients think that once they have the unrestricted license they can show up to their service center for immediate removal; they are unaware of the processes manufacturers have in place. If your schedule will not allow for a removal, please explain the process to the client and let them know that it is done that way for scheduling reasons.
If the client cannot provide a current unrestricted driver license you should call the State of Tennessee Ignition Interlock Program office to get clearance to remove the device. We ask you to do this so that we have the opportunity to explain the repercussions of early unauthorized removal to the client.
If the device was installed on a vehicle not owned by the client, and the vehicle owner wants the device removed, it can be removed. This happens often with parents of clients; simply confirm ownership on the vehicle's registration.
The client may provide a letter issued by the Driver Services Financial Responsibility Section titled "Remove Interlock Restriction". This letter states that they have completed their interlock requirement; someone may present this letter in lieu of a valid unrestricted driver license if they are incapable of reinstating/reissuing their license at that time. If this letter is presented and the addressee and driver license number match the client information, you may remove. I have attached a sample letter to this article for reference.