Mississippi Code Title 27. Taxation and Finance § 27-19-35

(1) The tag for motorcycles shall be in every respect similar to the ordinary vehicle tag, subject to regulations of the commission, with the exception that it shall be only six (6) inches wide, and three (3) inches high. It shall have the number and abbreviation “MISS.” and an appropriate area provided for year and month decals, as aforesaid, and shall be fastened immovably, in an upright position, at the rear of the cycle, so that it will be plainly visible and legible at all times from the rear of the cycle.

(2) Notwithstanding the provisions of this section, personalized license tags and special license tags may be issued for motorcycles as provided in Sections 27-19-48, 27-19-56 and 27-19-56.14.