(4) Where a surviving or nominated joint owner or partner of a deceased registered seed importer or of a deceased registered seed cleaner, as the case may be, is registered provisionally as such registered seed importer or as such registered seed cleaner under the provisions of paragraph (c) of subsection (1) of section ten, no registration fee shall be charged for such provisional registration, but the fee prescribed by the Second Schedule for renewal of provisional registration shall be payable in the event of any renewal thereof. (As amended by Act No. 21 of 1995) PART III TESTING OF SEEDS-CERTIFYING AUTHORITY AND CERTIFYING AGENCY-OFFICIAL SEED-TESTERS 17. (1) The Certifying Authority may licence any seed company or institution as a certifying agency in any kind of seed and plant variety. Power to licence certifying agency (2) The applictions for a licence referred to in subsection (2) shall be made in such form and under such conditions as may be prescribed by the Certifying Authority. (As amended by Act No. 21 of 1995) 18. (1) The Certifying Authority may approve any person to be an official seed inspector, sampler or tester for a certifying agency for the purposes of this Act. Designation of seed inspectors or testers (2) The application for approval as an official seed inspector, sampler or tester shall be in such form and shall be granted on such conditions as may be prescribed by the Certifying Authority. (As amended by Act No. 21 of 1995) 19. The Certifying Authority shall cause the following rolls to be kept: Rolls of official seed-testers, (a) a roll of official seed-testers, which shall containCertifying