4. If, before the end of the period of 28 days referred to in paragraph 1, notice in writing of an objection is received by either Department from any person appearing to it to be a person who may be affected by the draft programme or the draft programme as proposed to be altered under paragraph 3, the Departments, before making an order under Article 57(1) adopting the programme shall, unless the objections are met or withdrawn or the Departments are satisfied that they are solely of a frivolous or vexatious nature, cause an inquiry to be held by the Appeals Commission.