5.—(1) A crop from which basic is to be produced shall be examined by at least one official UK field inspection to determine whether the crop meets the requirements in this Schedule and in Part I of Schedule 4.
(2) A crop from which CS seed is to be produced shall be examined by at least one official UK field inspection or a UK field inspection carried out under official supervision to determine whether the crop meets the requirements in this Schedule and in Part I of Schedule 4.
(3) Field inspections shall be carried out at a time when the cultural condition of the field and the stage of development of the crop permit the varietal identity, varietal purity and health status of the crop to be adequately checked.