403.7—Action on applications; notices of requirements. [Rule 7]
The Board may at any time require the whole or any part of an application, answers or reply to be verified by affidavit, by giving a notice to that effect to the party from whom the affidavit is required. It the notice is not complied with, the Board may set aside the application, answer or reply or strike out any part not verified according to the notice. [Rule 7]