Paragraph 28 Meaning of “pre-basic seed”
Pre-basic seed is seed of a generation prior to basic seed—
that has been produced by or under the responsibility of the breeder according to well-defined practices for the maintenance of the variety; and
is intended to be used for the production of more pre-basic seed, basic seed or, with the breeder's written authority—
in the case of black mustard, brown mustard, dioecious hemp, sunflower, swede rape, turnip rape or white mustard, CS seed;
in the case of monoecious hemp or soya bean, C1 or C2 seed;
in the case of flax or linseed, C1 C2 or C3 seed.
But in relation to a component of a hybrid variety, “pre-basic seed” means seed of a generation prior to basic seed that is intended to be used for the production of—
more pre-basic seed;
basic seed; or
with the breeder's written authority, CS seed.