If the Bureau orders the suspension or termination of a Master Permit (Industrial Plant) registration, the registrant aggrieved may appeal, in writing, to the Electrical Board of Appeal within 15 calendar days after such order. The registrant will be given not less than 15 calendar days’ notice of the hearing. The Board will proceed to hear and determine the appeal. Any suspension of a registration by the Electrical Board of Appeal may be on such conditions as the Board may order. In all cases, decisions of the Board are final.