BROWARD – Courthouse is CLOSED to the public. You will not be able to register at the Broward location. Per FDLE, you can register in another County. The closest registration offices are:
Palm Beach County, located at the Stockade Jail, 673 W Fairgrounds Road, West Palm Beach, FL 33411 561-688-4990 (51 miles); or
Miami-Dade Police Dept 1701 NW 87th Avenue, Suite 222, Miami, FL 33126 305-715-3333 (34 miles).

According to Florida law you can register in any county.

A list of all county registration offices, along with their telephone numbers are published here: 

https://offender.fdle.state.fl.us/offender/Documents/REREGISTRATIONLOCATIONS.pdf

Attention: The state has not updated this list. The Manatee county registry location has changed to: 3500 9th Street West, Bradenton 34205.

Please call to verify the registry location if you're not sure.