Labels, wrappers, and containers bearing any official marks, with or without the establishment number, may be transported from one official establishment to another official establishment provided such shipments are made with the prior authorization of the inspector at point of origin, who will notify the inspector at destination concerning the date of shipment, quantity, and type of labeling material involved. No such material shall be used at the establishment to which it is shipped unless such use conforms to the requirements of this subchapter.