Can I send someone into the county clerk’s office to renew my disabled placard? Yes, if they have a completed power of attorney from you. August 28, 2020 19:33 Related articles Can I renew my disabled placard online? How can I get a handicap parking placard? Can a person use a disabled application from another state to receive a disabled license plate or placard in Tennessee? How many disabled placards and handicap plates are allowed? What do the stacked characters on the license plate mean?