Which document serves as a notice that must be filed with the Registrar within 7 days of an administrator's appointment?

The Notice of Appointment is the correct document that serves as a formal notification regarding the appointment of an administrator. It is essential for ensuring transparency and compliance with legal requirements for insolvency procedures. This notice must be filed with the Registrar within a specific timeframe—typically within seven days of the appointment—so that it becomes a matter of public record.

This requirement is critical as it alerts interested parties, such as creditors and stakeholders, about the new administrator’s role and responsibilities in overseeing the financial affairs of the company in question. By filing this notice promptly, the administrator helps to ensure that all relevant parties are informed and can take appropriate actions in response to the insolvency situation.

The other options, while relevant in the context of insolvency and company law, do not fulfill this specific role. A Statement of Affairs provides details about a company's financial situation but is not the notification concerning the appointment itself. Company Voluntary Arrangements outline proposals for debt repayment but do not serve as an appointment notice. A Moratorium provides temporary relief from creditor actions but is not a document related to the notice of appointment. Thus, the Notice of Appointment is uniquely positioned to fulfill this critical requirement in the process of administration.