Code of Alabama
Chapter 17A - Drugs and Controlled Substances Excise Tax.
Section 40-17A-4 - Restrictions Imposed if Tax Not Paid; Stamps.

No dealer may possess, distribute, sell, transport, import, transfer, or otherwise use any marihuana or controlled substance upon which a tax is imposed by Section 40-17A-8 unless the tax has been paid on the marihuana or other controlled substance as evidenced by a stamp or other official indicia.