The official identification of any inspected or graded product, as provided in §§58.50 through 58.52, this section, and §§58.54 through 58.57, shall be done only under the supervision of a supervisor of packaging. The authority to use official identification may be granted by the Administrator only to applicants who utilize the services of a supervisor of packaging in accordance with this subpart. The supervisor of packaging shall have jurisdiction over the use and handling of all packaging material bearing any official identification.