(a) No egg product may be brought into an official plant except as provided in § 590.430(b) unless it has been prepared and handled in accordance with these regulations, and the container of such product is marked so as to identify the article as so inspected in accordance with this part.

(b) All egg products brought into any official plant shall be identified by the operator of the official plant at the time of receipt at the official plant and shall be subject to reinspection by inspection program personnel at the official plant in such manner and at such times as may be deemed necessary to ensure compliance with the regulations in this part. Upon reinspection, if any such product or portion of it is found to be unsound, unwholesome, adulterated, or otherwise unfit for human food, such product or portion shall be condemned and shall receive such treatment as provided in § 590.422, and shall, in the case of other products, be disposed of according to applicable law.