(a) Responsibility for obligations relating to proper labeling of seed, other than those concerned with certification, arising from the sale or shipment of seed which has been certified rests with the producer or subsequent handler making the sale or shipment.

(b) All seed sold as certified shall have an official tag properly affixed to each container. Sealing requirements will depend on the species and methods of handling.

(c) All official certification tags and seals must be obtained from the authorized certification agency, and must be affixed to the seed containers in compliance with the regulations of the certifying agency.