(a) The provisions and requirements of this article shall not apply to:

(1) Any carrier while lawfully engaged in transporting a pesticide within this state if such carrier shall, upon request, permit the commissioner or his designated agent to copy all records showing the transactions in and movement of the articles;

(2) Any bona fide public or private research institution or agency; or

(3) The manufacturer or shipper of a pesticide for bona fide experimental use only, provided the manufacturer or shipper obtains a permit from the commissioner for such use which will be conducted under supervision of a qualified person and other conditions and requirements prescribed by rules and regulations adopted for this purpose, which shall require the quantity of pesticides to be used, location of use, crops or other objects of use, results of findings and other information deemed to be necessary for protection of the public.

(b) No article shall be deemed in violation of this article when intended solely for export to a foreign country and when prepared or packed according to the specifications or directions of the purchaser.

(c) Notwithstanding any other provision of this article, registration and labeling are not required in the case of a pesticide stored or shipped from one manufacturing plant within this state to another manufacturing plant within this state operated by the same person or from one manufacturer to another manufacturer, provided they are properly labeled whenever poison labels are required under subsection (a)(3) of Section 2-27-14.