If you want to get your trailer tag back, you should reach out to the Florida Department of Highway Safety and Motor Vehicles (FLHSMV) because they are the ones in charge of distributing vessel registrations and titles. To learn more about vessel titling and registration, visit their website at https://www.flhsmv.gov/motor-vehicles-tags-titles/vessels/vessel-titling-registrations/. Additionally, it might be necessary to get in touch with the county tax collector or license plate agent office where you submitted your application.