(a) Authorization by Secretary. The Secretary may, by a designation in writing, name any person, including any officer or employee of the United States Government, or name any bureau or division in the United States Department of Agriculture, to act as his agent or representative in connection with any of the provisions of this subpart.

(b) Authorization by committee. The committee may authorize any person or persons or agency to act as its agent or representative in connection with the provisions of this subpart.