If a subdivision provides for a body and procedures to hear building appeals, any person aggrieved by any application or interpretation of the Model Code may obtain review under the procedures. Review by this Department shall be granted: If requested by the appeals body referred to in §A. If requested by the aggrieved party before commencement of appeal procedures provided by the subdivision. In that case, the Director of the Building Codes Administration may, in the Director’s discretion, decline to review the question of interpretation or application and remand the question to the subdivision, because the question is of insufficient importance or can be resolved more readily at a local level, or for other reasons. The action is not reviewable. When a building appeals procedure is not provided by the subdivision. An aggrieved person requesting review by the Department of an application or interpretation of the Model Code shall do so in writing, addressed to the Director of the Building Codes Administration in the Department, together with a full statement of the circumstances and the reasons for challenge. The Director of the Building Codes Administration will normally refer the question of interpretation or application to ICC or NFPA, as the case may be, for answer by their respective interpretation services. The Director is not required to refer the question to ICC or NFPA. The Director shall notify the parties of the referral. Within 10 days from the receipt by the Director of the Building Codes Administration of the request for review, or within 10 days from receipt by the Director of an answer from ICC or NFPA when the question has been referred, the Director shall notify the parties of the Director’s decision, with a statement of the reasons for it, including a copy of any communication from ICC or NFPA. Review of an adverse decision of the Director of the Building Codes Administration shall be by appeal to the Secretary, filed within 30 days after issuance of the decision by the Director.