(a) The Department of Finance and Administration shall provide a motor vehicle license plate decal for deaf persons upon the payment of a fee of one dollar ($1.00) and satisfactory proof that the person's average loss in the speech frequencies of five hundred hertz to two thousand hertz (500 Hz-2,000 Hz) in the better ear is eighty-six decibels (86 dB) or more by the International Organization for Standardization.
(b) The department shall design a decal to indicate that the operator of the motor vehicle may be deaf.
(c) [Repealed.]