Paragraph 11 I1

The failure of any person (other than the appellant in serving notice of appeal on the Secretary of State within the time prescribed in paragraph 3 above) to serve any notice, submission or reply, or copies thereof or to furnish any particulars in the time provided for in this Part of this Schedule or any other procedural irregularity shall not invalidate the decision of the Secretary of State; but the Secretary of State may take such steps as he thinks fit before deciding the appeal to cure the irregularity and shall take such steps if he considers that any person may have been prejudiced.