Every pesticide that is used, distributed, sold, or offered for sale within the Virgin Islands or delivered for transportation shall be registered every two years with the Office of the Commissioner; provided that any pesticide imported into the Virgin Islands, which is registered under the provisions of any federal act providing for the registration of pesticides may, in the discretion of the Commissioner, be exempted from registration under this chapter, when sold or distributed in the unbroken immediate container in which it was originally shipped.