§163.4 Filing of requests for certification.

All requests for a certification shall be made in writing to the Director. Action upon such a request will not be undertaken unless (a) the person making the request has, pursuant to the provisions of the Federal Insecticide, Fungicide, and Rodenticide Act, registered or submitted an application for the registration of an economic poison consisting of or containing the pesticide chemical for which the certification is sought and (b) the request is accompanied by a copy of the petition. The person requesting certification may at any time withdraw such request for certification.