(a) Every person who manufactures, distributes, or dispenses any controlled substance within this state or who proposes to engage in the manufacture, distribution, or dispensing of any controlled substance within this state, must obtain annually a registration issued by the state Board of Pharmacy or the appropriate department, board, or agency, as the case may be, as specified in section three hundred one, in accordance with its rules.
(b) Persons registered by said state Board of Pharmacy or said appropriate department, board, or agency, as the case may be, under this act to manufacture, distribute, dispense, or conduct research with controlled substances may possess, manufacture, distribute, dispense, or conduct research with those substances to the extent authorized by their registration and in conformity with the other provisions of this article.
(c) (1) The following persons need not register and may lawfully possess, deliver, or transport into this state controlled substances under this act:
(A) An agent or employee of any registered manufacturer, distributor, or dispenser of any controlled substance if he is acting in the usual course of his business or employment;