Sections 21.82 and 21.83 do not apply:

1. (a) to seed or grain not intended for sowing purposes;

2. (b) to seed in storage in or being transported or consigned to a conditioning establishment for conditioning, provided that the invoice or label accompanying any shipment of the seeds bears the statement "seeds for conditioning," and provided that any labeling or other representation which may be made with respect to the unconditioned seed is subject to the provisions of sections

   21.82 and 21.83; or

3. (c) to any carrier with respect to seed transported or delivered for transportation in the ordinary course of its business as a carrier, provided that the carrier is not engaged in producing, conditioning, or marketing seeds subject to sections 21.82 and 21.83.