Iran China Accountability Act This bill prohibits the use of funds to enter into any negotiation with Iran regarding an Iran nuclear agreement until the President makes specified certifications concerning the actions of China and Iran. Specifically, the President must certify that China has ceased incarcerating Uighur individuals in the Xinjiang region. Additionally, the President must certify that, among other actions, Iran has terminated all agreements involving the receipt of funds from China and all ties and transfer of cash to Iranian proxy forces, including Hamas. Further, any Iran nuclear agreement that the United States enters into must certify the destruction of any and all Iranian nuclear and missile capabilities, weapons, infrastructure, chemical weapons, and offensive cyber activity. Such agreement shall be deemed a treaty requiring advice and consent of the Senate.