5.3.2  In accordance with Code Article 24.1.5, i f the Signatory  accepts or does not dispute the contents of that notice within twenty -one (21) days of its receipt, the allegation of non-compliance will be deemed admitted and the Signatory  Consequences  and Reinstatement  conditions will be deemed accepted, and (unless appealed in accordance with Code Article 13.6) the notice will automatically become a final decision enforceable with immediate effect in accordance with Code Article 24.1.9.