If you are voting by mail, you are encouraged (though it is not required) to update your signature annually.
I am . . .
(a) A civilian living stateside. PDF of Florida Voter Registration Application: (English) (Spanish). Please MAIL to SUPERVISOR OF ELECTIONS, 105 E MONROE ST, JACKSONVILLE, FL 32202. You may also obtain a blank form and drop off your completed form at any Jacksonville Public Library.
(b) An overseas voter and/or a member of the uniformed services or merchant marine or dependent.