Reports, as specified below, are required from all persons coming within the reporting requirements, whether or not they are contacted by BEA. In addition, any person BEA contacts, either by sending them report forms or buy written inquiry concerning the person's being subject to the reporting requirements of a survey conducted pursuant to this part must respond in writing. The reponse must be made by filing the properly completed report form, or by submitting in writing, or within 30 days of being contacted, a valid exemption claim (including the situation where the statistical data requested on the form are not applicable) or by certifying in writing to the fact that the person has no direct investments within the purview of the Act or the regulations contained herein. This requirement is necessary to ensure compliance with reporting requirements and efficient administration of the Act.