"variety" means a subdivision of any kind which can be differentiated from other subdivisions of that kind by growth, plant, fruit or other characteristics and any uniform group which is a first generation hybrid (F1) reconstituted on each occasion by crossing two or more breeding stocks maintained by inbreeding; "Zambia certified seed" means any prescribed seed produced by a registered seed producer and certified pursuant to the provisions of Part VIII. (As amended by Act No. 21 of 1995) PART II ADMINISTRATION-REGISTRATION IMPORTERS SEED CLEANERS OF SEED AND 3. (1) The Seed Control and Certification Institute is hereby designated Control and as the Certifying Authority and shall be responsible for the Certification administration of this Act. Institute (2) The Certifying Authority may, subject to the general or specific direction of the Minister, delegate any of its functions under this Act to any authorised officer in the public service. (As amended by Act No. 21 of 1995) 4. The Certifying Authority shall cause to be kept(a) a Register of Seed Importers which shall contain- (i) the names and addresses, and the principal business addresses in Zambia, of all seed importers registered under this Act; (ii) such other particulars as may be prescribed; (b) a Register of Seed Cleaners which shall contain­ (i) the names and addresses, and the principal business addresses in Registers