A request may be made any time during a registration period. If a request is made for a specialty license plate to replace a current valid license plate, the specialty license plate must be issued with appropriate decals attached at no tax for the plate, but all fees and service charges must be paid. If a request is made for a specialty license plate at the beginning of the registration period, the tax, together with all applicable fees and service charges, must be paid.
Fla. Stat. § 320.08056