Seed attested by a recognized certifying agency to be of specific source or genetic characteristic or superiority.

The progeny of breeder's select or foundation seed so handled as to maintain satisfactory genetic purity and identity. Production must be acceptable to a certification agency. Also refers to seed that fulfils all requirements for certification provided by the Seeds Act and Rules and to the container of which the certification tag is attached.

The progeny of registered seed stock. It is the final stage in the expansion program and is certified with a metal seal and blue tag.