The so-called "Ag Gag Bill" could be unconstitutional, according to Tennessee's attorney general.
The measure would make it illegal for anyone to videotape or photograph animal abuse without turning it over to law enforcement within 48 hours.
Attorney general Robert Cooper said in an opinion issued Thursday that the reporting requirement could put "an unconstitutional burden on news gathering."
Governor Bill Haslam has the bill on his desk.
He said earlier this week he was waiting on the attorney general's opinion before deciding whether to veto it or allow it to become law.