https://www.yahoo.com/news/articles/fines-jail-time-florida-isnt-141500208.html
With the law in effect, many motorists are now at risk of being pulled over. In fact, WINK News found that many drivers were unknowingly breaking the law, even with frames installed directly by car dealers. Such frames often look "official," leading people to assume they're legal. But that assumption won't cut it under the new rules, turning them into features that make any car a police magnet.
It's worth mentioning that the foundation for the new law is actually quite old. The Florida Statute 316.605 has required tags to be fully legible from 100 feet away since 1971. But legislators have now updated the consequences for violating it. Specifically, Bill 253 states that it's "increasing the penalty for knowingly altering a motor vehicle registration certificate, a license plate, a temporary license plate, a mobile home sticker, or a validation sticker or obscuring a license plate from a noncriminal traffic infraction to a second degree misdemeanor."