Here's the legislation language. Notice the last sentence:
The owner of the electric motor vehicle may elect to use different license plates issued under this article 3 or the rules promulgated under this article 3, not including the license plates issued in accordance with section 42-3-203. If this article 3 or the rules promulgated under this article 3 require different license plates to be issued for a motor vehicle, the department shall issue the different license plates for the motor vehicle. If an electric motor vehicle is not issued electric vehicle license plates, the owner shall use the decal issued in section 42-3-304(25) to identify the electric motor vehicle.