. . . . "??538.306 Information and informational materials.(a)(1) For purposes of this part, the term information and informational materials means publications, films, posters, phonograph records, photographs, microfilms, microfiche, tapes, compact disks, CD ROMs, artworks, and news wire feeds, and other information and informational materials.(2) To be considered informational materials, artworks must be" . . . . . . . .