You can bring deer across the state line if they are de-boned. You also cannot bring any brain matter across state lines.
lol, It DOES NOT have to be deboned. It simply has to be free of spinal fliud and/or brain matter. I saw a guy de-boning one this past year in Idaho on a side road and asked "WHY?". The knucklehead spent about 5hrs processing a deer because his friend told him it had to be deboned lol.
To transport a deer from Alabama into Florida it most certainly DOES have to be deboned before coming into Florida. Straight from FWC:
Be aware of rules that prohibit importing or possessing whole carcasses or high-risk parts of deer, elk, moose, caribou and all other species of the deer family originating from any place outside of Florida.
Under these rules, people may import into Florida:
De-boned meat
Finished taxidermy mounts
Clean hides and antlers
Skulls, skull caps and teeth if all soft tissue has been removed
Bottom of this page:
https://myfwc.com/research/wildlife/health/white-tail-deer/cwd/regulations/