Article 169 establishes a procedural gatekeeper for tax grievances. It stipulates that the Committee shall not consider the subject matter or issue a decision on any grievance unless it strictly fulfills all prescribed formal requirements. These 'form requirements' typically include the grievance being in writing, containing detailed requests and supporting reasons, and being filed within the statutory timeframe. This ensures that the Committee's time is only spent on properly prepared and legally admissible cases, preventing administrative delays caused by incomplete or improperly filed taxpayer challenges.