The Chief of the Fire Department and two (2) persons appointed by the Mayor with the approval of the Council shall act as a committee to determine and specify, after giving affected persons an opportunity to be heard, any new materials, processes, or occupancies, which shall require permits, in addition to those now enumerated in said Code. The Fire Chief shall post such list in a conspicuous place in his office, and distribute copies thereof to interested persons. (Prior Code § 8-7)