Land requirements

The following field requirements may be modified when the reproduction of a strain or strains, entering into a specific variety, are under the supervision of an experiment station or seed certification agency. 1. A field, to be eligible for the production of foundation seed, must not have grown or been seeded to the same species during the previous five years. 2. A field, to be eligible for the production of registered or certified seed, must not have been in the production of the same species during the previous year unless the crop was of the same variety or strain and was inspected for certification.