The 2009 Florida Statutes
(3) The owner of an ancient or antique firefighting apparatus, former military vehicle, or other historical motor vehicle 30 years old or older
which is used only in exhibitions, parades, or public display may, upon application in the manner and at the time prescribed by the department and upon payment of the license tax prescribed by s.
320.08(2)(a), be issued a license plate as prescribed in subsection (1) or subsection (2). License plates issued under this subsection shall be permanent and valid for use without renewal as long as the vehicle is in existence and its use is consistent with this subsection.
(5) A former military vehicle that is used only in exhibitions, parades, or public display is exempt from the requirement to display a license plate or registration insignia if the exemption is necessary to maintain the vehicle's accurate military markings. However, the license plate and registration certificate issued under this section must be carried within the vehicle and available for inspection by any law enforcement officer.
(6) For purposes of this section, "former military vehicle" means a vehicle, including a trailer,
regardless of the vehicle's size, weight, or year of manufacture, that was manufactured for use in any country's military forces and is maintained to represent its military design and markings accurately.
Statutes & Constitution :View Statutes : Online Sunshine
just a portion of the full thing, follow the link for a full read.
BTW, the form( HSMV 83045), you fill out to to send to Tallasshee has a misprint saying the MV must be 30 years old, a condradiction of the statute stated above.