If the Secretary or the Attorney General determines that the export trade, export trade activities, or methods of operation of a person holding a certificate no longer comply with the standards of
section 4013(a) of this title, or that such person has failed to comply with a request made under paragraph (1), the Secretary shall give written notice of the determination to such person. The notice shall include a statement of the circumstances underlying, and the reasons in support of, the determination. In the 60-day period beginning 30 days after the notice is given, the Secretary shall revoke the certificate or modify it as the Secretary or the Attorney General deems necessary to cause the certificate to apply only to the export trade, export trade activities, or methods of operation which are in compliance with the standards of
section 4013(a) of this title.