provides, in part, that the amendment to this Code section shall be applicable to all registration, annual, or license fees of apportionable vehicles and ad valorem and alternative ad valorem taxes of apportionable vehicles on or after January 1, 2014.
Ad valorem taxes imposed on motor vehicles and mobile homes subject to this article shall be at the assessment level and mill rate levied by the taxing authority on tangible property for the previous
calendar year.