Conn. Gen. Stat. § 22-111p: Sales and exchanges between importers, manufacturers or manipulators.

Nothing in this chapter shall be construed to restrict or avoid sales or exchanges of fertilizers between importers, manufacturers or manipulators who mix fertilizer materials for sale or to prevent the free and unrestricted shipments of fertilizer to manufacturers or manipulators who have registered their brands as required by the provisions of this chapter or any regulation adopted pursuant to section 22-111j.