355.33—Plant number to be embossed on metal containers.
The official number assigned to an inspected plant under § 355.8 shall be embossed on all sealed metal containers of certified products filled in such plant, except that such containers which bear labels lithographed directly on the container and in which the plant number is incorporated need not have the plant number embossed thereon. Labels and embossed code identification shall be affixed so as not to obscure the embossed plant number.