Ariz. Rev. Stat. § 12-653.02
In an action for damages for the publication of a libel in a newspaper or magazine, or of a slander by radio or television broadcast, the plaintiff shall recover no more than special damages unless a correction is demanded and not published or broadcast, unless the plaintiff shall prove the publication or broadcast was made with actual malice. The plaintiff shall serve upon the publisher at the place of publication, or broadcaster at the place of broadcast, a written notice specifying the statements claimed to be libelous and demanding that the same be corrected. The notice and demand shall be served within twenty days after actual knowledge of the plaintiff of the publication or broadcast of the statements claimed to be libelous.
A.R.S. § 12-653.02