Florida Statutes Title XXVI. Public Transportation § 335.08. Numbering public roads

(1) The department is authorized to number and renumber the roads of the State Highway System and to advise the counties and municipalities on the numbering of the roads in their respective road systems.

(2) The department may establish a systematic numbering plan, giving even numbers to roads extending in the general direction of east and west, and odd numbers to roads extending in the general direction of north and south.