Fla. Stat. § 316.500

It is a violation of this chapter for any person to drive or move, or for the owner to cause or knowingly permit to be driven or moved, on any highway any vehicle or vehicles of a size or weight exceeding the limitations stated in this chapter or otherwise in violation of this chapter, and the maximum size and weight of vehicles herein specified shall be lawful throughout this state. Local authorities shall have no power or authority to alter said limitations except as express authority may be granted in this chapter.