SENS-O-LOCK WC9000+ Guia Del Usuario página 30

Step 5. We will provide the Service Center with a shipping label
for the return of your IID device; however, you are responsible to
ensure they return your device to Sens-O-Lock of America in a
timely manner.
Step 6. As soon as your equipment has been returned, your
account will be closed.
NOTE: You are not legal to drive without an IID until you
have received your un-restricted license.