10. Pre-basic seed (including hybrids) is seed—
(a)produced from a generation prior to pre-basic seed or from pre-basic seed by or under the responsibility of the breeder according to well-defined practices for the maintenance of the variety; and
(b)intended for the production of—
(i)more pre-basic seed;
(ii)basic seed; or
(iii)with the breeder’s written authority, certified seed of categories CS, C1 or C2 (hybrid varieties may not be produced to C1 or C2).