Any or all benefits of the may be denied any for any of the following reasons: (a) Any willful misrepresentation or deceptive or fraudulent practice made or committed by any in connection with the making or filing of an for ; (b) any fradulent or unauthorized use, alteration, or imitation of any issued pursuant to the in this subpart; (c) any interference with or obstruction of any or official sampler in the performance of his duties, by intimidation, threat, assault or any other improper means; or (d) any willful violation of the in this subpart may be deemed sufficient cause for debarring the found guilty thereof from any or all benefits of the acts, after notice and opportunity for hearing has been accorded him. The Rules of Practice Governing Formal Adjudicatory Proceedings Instituted by the Under Various Statutes set forth in §§ 1.130 through 1.151 of this title and the Supplemental Rules of Practice in part 50 of this chapter shall govern proceedings conducted pursuant to this section.